Health: News, features, tips and alerts to keep you healthy - WTNZ FOX 43 Knoxville, TN

Diet, exercise counseling urged for overweight Americans with heart risks

Overweight Americans with risk factors for heart disease should be offered "intensive" counseling on diet and exercise, according to new guidelines released this week. More>>

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Start school later for older kids, pediatricians urge

U.S. high schools and middle schools should start classes later in the morning to allow kids some much-needed sleep, a leading group of pediatricians is urging. More>>

Fewer U.S. teens using sunscreen

The number of U.S. teens using sunscreen dropped nearly 12 percent in the last decade, a new report shows. More>>

When it comes to a growing child, the brain comes first

Young children grow much more slowly than other mammals because their developing brains require so much energy to prepare for the challenges of later life, a new study contends. More>>

Obama administration offers new rules for religious objections to health care law

Responding to a Supreme Court ruling handed down late in June, the Obama administration proposed a compromise path that it said would allow women to obtain contraceptives through their health plan. More>>

Low-nicotine cigarettes may not lead to more smoking

People who use reduced-nicotine cigarettes don't smoke more to make up for the lower levels of nicotine, according to a new study. More>>

Study: Men, lesbians more likely to have orgasms

When it comes to achieving orgasms during sex with a regular partner, straight women still lag behind men and lesbian women, a new study suggests. More>>

Consumer Reports advises pregnant women to avoid tuna

In a new review of seafood safety, Consumer Reports is advising that pregnant women avoid eating tuna due to concerns about mercury exposure. More>>

Want to stay slim? Leave the car at home

Leaving the car at home and getting to work by walking, cycling or public transit is good for your health, a new study indicates. More>>

When parents need care, daughters carry the burden

It's no secret that daughters seem to bear the brunt of caregiving duties for elderly parents, but a new study suggests that conscientious daughters often fill the gaps left by sons. More>>

Fitness may boost kids' brainpower

Exercise and brainpower in children may not seem closely related, but a small new study hints that fitness may supercharge kids' minds. More>>

Education linked to activity levels during the week

College-educated Americans tend to be more physically active on weekends, while adults without a high school diploma are more active on weekdays, a new study finds. More>>

Good neighbors are good for your heart

Having good neighbors may reduce your heart attack risk, new research suggests. More>>

Co-workers take dim view of women who seek flex time

Women seeking a better work-life balance are less likely than men to be viewed positively by their colleagues, a new study finds. More>>

Doctors ID new ways to get more kids vaccinated

Doctors are still struggling to find effective ways to convince wary parents of the importance of vaccinating their infant children. More>>

More employers moving to high-deductible health plans

Many Americans with job-based health insurance will face costlier deductibles next year as more large employers embrace or expand so-called consumer-directed health plans, a new survey finds. More>>

Nearly 1 in 5 Americans drinks at least 1 soda a day

A new survey of American adults across 18 states finds 17 percent drinking at least one sugary soda per day, with rates varying widely across states. More>>

Popular southern fare may harm your kidneys

The types of food that many Southerners seem to prefer -- fried foods, sweet drinks and processed meals -- may be deadly for people with kidney disease, a new study suggests. More>>

40 percent of Americans will develop diabetes

Approximately two out of every five Americans will develop type 2 diabetes at some point during their adult lives, according to new U.S. government estimates. More>>

Robin Williams' death shines light on depression, substance abuse

The apparent suicide Monday of Academy Award-winning actor and comic star Robin Williams has refocused public attention on depression, its sometimes link to substance abuse and, in tragic cases, suicide. More>>

Preemies' thinking skills may catch up by adolescence

A new Australian study offers some potentially reassuring news to parents of preemies who are worried about their child's intellectual development. More>>

Acidic drinks can damage kids' teeth permanently

High acidity levels in soft drinks, fruit juice and sports beverages pose a threat to youngsters' teeth, a new study reports. More>>

Ethicists grapple with tough questions over release of Ebola drugs

As the number of dead in the West African Ebola outbreak nears 1,000, many people are calling for the wider production and release of untested medicines that might help patients. More>>

Exercise cuts breast cancer risk in older women

Older women intent on keeping breast cancer at bay may want to start and maintain a regular exercise regimen, a new study shows. More>>

Coffee may keep your ears from ringing

Being a coffee lover may be good for your ears, a new study suggests. More>>

Distracted teen drivers often on cellphone with parent

Up to half of teens talking on cellphones while driving are speaking with their mother or father, according to new research. More>>

U.S. hospitals see big rise in drug-related suicide attempts

Drug-related suicide attempts in the United States increased over a recent six-year period, with dramatic increases seen among young and middle-aged adults, health officials reported Thursday. More>>

Fears of U.S. Ebola outbreak unwarranted, experts say

The decision to bring two American aid workers infected with Ebola back to the United States has kicked up controversy, causing some to fear a local outbreak of the killer virus. More>>

Need to spot a narcissist? Just ask them

Self-absorbed narcissists can ruin your day, but a new study suggests an easy way to detect one: Just ask. More>>

Daily aspirin may help prevent cancer

Taking aspirin every day appears to reduce the odds of developing and dying from colon, stomach or esophageal cancer, a new study suggests. More>>

Skip the steroids for shoulder pain?

For relief of shoulder pain, physical therapy and steroid shots provide similar results, a new study finds. More>>

Preschoolers can suffer from depression, too

Depression can strike at any age, even among preschoolers, researchers report. More>>

Could a little video game play be good for kids?

Kids who spend a little time playing video games each day might be more well-adjusted than those who never play, a new study suggests. More>>

2nd Ebola patient to arrive in United States

The second of two Americans stricken with Ebola in the West African nation of Liberia will arrive in the United States on Tuesday to begin treatment, according to media reports. More>>

Women in military drink less than civilians

Women who serve in the U.S. military are less likely to drink alcohol than their civilian peers, a new study suggests. More>>

Ebola patient to be flown to U.S. for treatment

An American who is battling the Ebola virus in West Africa will be flown to the United States for treatment, according to staff at Emory University Hospital in Atlanta. More>>

No TV or obesity, but ancient people still had heart disease

They may not have had fast food, TVs or cigarettes, but people of ancient times commonly developed clogged heart arteries -- and a new research review speculates on some reasons why. More>>

Extreme weather kills 2,000 in U.S. each year

Each year in the United States, at least 2,000 Americans die from extreme heat or cold, floods or lightning, health officials said. More>>

Your snacks are stressing you out

The foods you crave when you're stressed are just making your bad mood worse, research out of Harvard reveals.

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Adults who've abused alcohol may be at risk for memory problems

Middle-aged adults with a history of alcohol abuse are more than twice as likely as others to develop severe memory problems later in life, according to a new study. More>>

Wider face may give you an edge in negotiations

Successful negotiations may depend on more than diplomacy. When it comes to negotiating, men with wider faces may have an advantage, according to a new study. More>>

Healthy habits may slow cellular signs of aging

Exercise, a healthy diet and good sleep can protect the body against the negative effects of stress and slow down the aging process at a cellular level, researchers report. More>>

'Love hormone' oxytocin may help some with autism

Treating certain adult autism patients with just a single dose of the hormone oxytocin quickly improved their ability to judge facial expressions and emotions, Japanese researchers report. More>>

Doctors urge meningitis shots for vulnerable infants, children

Infants and children who are at risk of contracting meningitis because of specific health problems should be vaccinated against the infection, according to updated recommendations from the largest pediatrician group in the United States. More>>

Wives' higher education may not affect divorce rate

Couples aren't more likely to get divorced if the wife has more education than the husband, new research finds. More>>

The 'Hobby Lobby ruling' and what it means for U.S. health care Video included

The U.S. Supreme Court's ruling on contraception coverage -- as mandated under the Affordable Care Act -- could lead to a legal quagmire that might allow companies to deny insurance coverage for any medical practice that violates their religious principles. More>>

Lift U.S. ban on blood donations by gay men

The United States should repeal a 30-year policy that bans blood donations from gay and bisexual men, according to a team of medical and legal experts writing this week in the Journal of the American Medical Association. More>>

More than 10 million people gained coverage under Affordable Care Act

A new study estimates that more than 10 million uninsured Americans gained health coverage over the past year due to the Affordable Care Act. More>>

Parents of obese kids often view them as healthy

Parents of obese children often don't view their kids as unhealthy or recognize the health consequences of excess weight or inactivity, according to a new study. More>>

Many obese U.S. kids think they're thinner than they are

Many obese and overweight American children and teens look in the mirror and tell themselves their weight is fine, U.S. health officials reported Wednesday. More>>

2 courts, 2 different decisions on key Obamacare provision

In a wild day for Obamacare, two federal appeals courts arrived at completely different conclusions Tuesday on the use of financial subsidies provided to millions of Americans who bought health insurance through the... More>>

Parents of children with autism need help, too

Most therapies for autism focus on the child, but new research suggests the child's stressed-out parents could benefit from treatments designed specifically for them. More>>

MERS virus found in air in camel barn

Genetic fragments of the deadly MERS virus were detected in the air of a barn where an infected camel was kept, a new study says. More>>

Waistlines of U.S. kids seem to be holding steady

The waistlines of America's children and teens may have stopped expanding, a new study indicates. More>>

Exercise may help counter health risks of sedentary lifestyle

Being a couch potato may have fewer long-term health consequences if you trade some of your couch time for gym time, suggests a new study. More>>

Many sexually active U.S. teens not tested for HIV

Only one in five sexually active U.S. teens has been tested for HIV, a new government report shows. More>>

Sexy Facebook photos not a hit with many young women

Teen girls and young women who post sexy photos of themselves on social media sites are viewed negatively by their peers, a new study finds. More>>

Delayed retirements may forestall predicted nursing shortage

The nation's supply of registered nurses has been growing faster than expected, largely because baby boomers in nursing are working longer than ever before, according to a new study. More>>

Scientists create 'biological pacemaker' in pig hearts

Researchers say they've found a way to transform ordinary pig heart muscle cells into a "biological pacemaker," a feat that might one day lead to the replacement of electronic pacemakers in humans. More>>

Science finds way to block booze's effect -- in worms

Scientists who created worms that can't get drunk say their research could lead to new ways to treat people with drinking problems. More>>

Genes may raise risk of cerebral palsy

New research suggests that genes may play a role in cerebral palsy, the most common cause of physical disability in children. More>>

Organic foods may be healthier

Organic produce and grains contain more protective antioxidants, less pesticide residue and lower levels of the toxic metal cadmium than food raised in traditional ways, a new review finds. More>>

Alzheimer's rate falling in the U.S.

The number of new cases of dementia has been declining in recent decades in the United States, Germany and other developed countries, a trio of new studies shows. More>>

Ipads can trigger nickel allergies in kids

When an 11-year-old boy in San Diego developed a nasty skin allergy, doctors traced it to the nickel in his family's iPad. More>>

Spoon measurements behind many child drug-dosing errors

Using a teaspoon or tablespoon to administer kids' medications can often lead to medication dosing errors, a new study reports. More>>

Brains of sex addicts may be wired like those of drug addicts, study finds

In people with sex addiction, pornography affects the brain in ways that are similar to that seen in drug addicts as they consume drugs, a new study finds. More>>

A little alcohol may not be good for your heart after all

A new study challenges the widely held belief that light drinking of alcohol may be good for your heart. More>>

Mississippi girl thought cured of HIV shows signs of infection

A Mississippi girl born with HIV who was thought to be cured by immediate and aggressive drug treatment has relapsed, with new tests showing detectable levels of the AIDS-causing virus in her bloodstream. More>>

Are you tweeting your marriage away?

Forget about the Twitter wars that break out regularly between outspoken celebrities or loudmouth pundits -- too much Twitter can be bad for your own relationship, a new study suggests. More>>

Researchers say they've found new clues to autism

A genetic mutation that increases the risk for a certain form of autism and causes specific physical traits and symptoms has been identified by researchers. More>>

Kids still getting too much 'screen time'

U.S. teenagers are still spending hours in front of the TV and computer every day -- despite years of expert advice that kids' "screen time" should be limited, a new government study finds. More>>

Teens drawn to heavily advertised alcohol brands

The brands of alcohol favored by underage drinkers are the same ones that are heavily advertised in magazines read by young people, a new study reveals. More>>

Kids on tight schedules may lose out

Which approach to parenting is best: tiger mom or free range? More>>

Hurricane season has begun: are you ready?

As Hurricane Arthur threatens the East Coast of the United States, people are getting an important reminder about safety preparations they need to make for hurricane season. More>>

Guard your kids against bug bites this summer

Children love being outdoors during the summer, but they need to be protected from mosquitoes, ticks and fleas and the diseases they may carry, experts warn. More>>

Injuries, violence are leading causes of death for young Americans

Nearly 80 percent of deaths of Americans age 30 and younger result from injury or violence, U.S. health researchers reported Tuesday. More>>

iPads may help boost speaking skills in kids with autism

Adding access to a computer tablet to traditional therapy may help children with autism talk and interact more, new research suggests. More>>

Childhood vaccines vindicated once more

Parents worried about getting young children vaccinated against infectious diseases have fresh cause for reassurance, researchers say. More>>

Dad's ethnicity may influence baby's birth weight

A father's ethnic background might influence how much his baby weighs at birth, a new study suggests. More>>

A laptop may boost a hospitalized child's recovery

A hospital can be a lonely and stressful place for a sick child recuperating from a serious illness, but researchers say relief from boredom and isolation is just a mouse click away. More>>

'Sexting' linked to sex in middle school

Middle school students who send sexually explicit text messages and photos to one another are more likely to have sex than those who don't "sext," a new study finds. More>>

Sounds of summer may threaten your hearing

Some of the most common sounds of summer -- such as outdoor concerts, fireworks and construction -- can pose a threat to your hearing if you don't take steps to protect yourself, an expert warns. More>>

Your stomach bug may well be norovirus

Norovirus, the highly contagious stomach bug dubbed the "cruise-ship virus," accounts for about one-fifth of all cases of gastroenteritis worldwide, according to a new study. More>>

Summer's a great time for tonsil removal

Summer is the perfect time for children to have their tonsils removed, according to an expert. More>>

Chronic migraines affect the whole family

When a spouse, partner or parent has chronic migraines, the whole family suffers, a new study found. More>>

1 in 10 U.S. beaches fails bacteria test

Swimmers, take heed: Ten percent of water samples taken from U.S. coastal and lake beaches fail to meet safety standards set by the U.S. Environmental Protection Agency, a new report finds. More>>

Fruits, veggies not a magic bullet for weight loss

Eating lots of fruits and vegetables is often recommended as a way to lose weight, but doing so may not help you shed excess pounds, according to researchers. More>>

Natural conception later in life tied to longer life for women

Women who naturally have babies after age 33 tend to live longer than those who had their last child before age 30, a new study finds. More>>

Pediatrics group wants parents to read to their children every day

All pediatricians should encourage parents to read out loud to their children every day, beginning in infancy, to promote literacy and strengthen family ties. More>>

Diets high in dairy might boost colon cancer survival, a bit

A diet rich in dairy products may slightly extend the lives of people diagnosed with colon cancer, a new study suggests. More>>

Your smartphone carries your personal bacteria

Your smartphone is personalized in a surprising way: It carries the same types of bacteria you have on your body, which suggests the devices could be used as bacterial and health sensors, a new study says. More>>

Tips for keeping that bounce house safe

Inflatable bounce houses may be fun for kids, but only if they're used correctly, experts caution. More>>

Indoor tanning leads to early skin cancer

Teens and young adults who engage in indoor tanning risk developing skin cancer at an early age, a new study finds. More>>

Too many U.S. babies still delivered early without medical need

More than three percent of U.S. babies are delivered early without a medical reason, a new study finds. More>>

Hypnosis may help improve deep sleep

A short session of hypnosis might lead to a better night's sleep, says a team of Swiss researchers. More>>

Teen 'sexting' has a double standard

While explicit "sexting" doesn't appear common among American teenagers, a small new study suggests girls may face a double standard.
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U.S. health snapshots: Insurance coverage expands, but gaps remain

Two new U.S. government reports provide a statistical snapshot of health and health insurance coverage in 2013, before new coverage options took effect under the Affordable Care Act. More>>

Job loss tougher for Americans than Europeans

Getting a pink slip is never uplifting, but a new study suggests it's a bigger downer for Americans than for Europeans. More>>

Number of induced labors falling in U.S.

After almost two decades of steady increases, the number of U.S. infants born early due to induced labor and C-section has declined in recent years, according to a new report from the Centers for Disease Control and... More>>

'Walkable' neighborhoods may help cut diabetes rates

People who live in "walkable" neighborhoods are less likely to be overweight or obese and also have lower rates of diabetes. More>>

Stroke prevention for women: Start early

Stroke typically affects women in their later years, but doctors are now beginning to focus on helping them cut their risk earlier in life. More>>

E-cigarette sources soaring

Online marketing of electronic cigarettes and flavors has soared in recent years, a new study finds. More>>

Headaches during sex more common than thought

While about 1 percent of adults report having headaches -- sometimes severe ones -- during sex, an Illinois neurologist says headaches during sex may actually be much more common.
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Delinquent teens more likely to die violently as adults

Delinquent youth face a significantly increased risk for a violent death when they're adults, a new study finds. More>>

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