America's obesity epidemic laid bare: Maps reveal at least 20% of EVERY state is clinically overweight

At least 20 per cent of adults are obese in every state of America, according to new figures from the Centers for Disease Control and Prevention. In four states - Alabama, Louisiana, Mississippi, and West Virginia - more than 35 per cent of residents are morbidly overweight. And 21 states have a rate between 30 and 35 per cent. MailOnline

Getting high on cannabis makes you less likely to work hard for money, study says

However the researchers found no difference between cannabis users not under the influence of the drug and non-users – at least when it came to a test that involved tapping their little finger really quickly. Independent

Want the best sleep of your life? Go to bed NAKED: Expert reveals the 10 easy ways to banish insomnia

Now a clinical nutritionist in the U.S., 36-year-old Shawn Stevenson has helped some 3,000 clients turn around their lifestyles. Here he explains how you can improve your sleeping habits. Mailonline

Vaping is 'as bad as smoking cigarettes' for damaging key blood vessels

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Lack of sleep causes breast cancer: Exhaustion deprives us of crucial tumor-fighting hormones, study warns

Melatonin, a hormone produced by the brain that makes us tired, suppresses tumors from growing, according to researchers at Michigan State University. MailOnline

Top tips for a brighter smile

• Take the white shirt test: anything that would stain the shirt will usually have a similar effect on your teeth over time,” 
•  Eat a detergent food like “Fibrous foods, like carrots, apples and celery,
• Get scaled and polished
• Home polishers can also help to remove staining.
• Sip it through a straw:“Red wine, cranberry juice and any other heavily coloured drinks can stain your teeth,
• Go electric: Ask most dentists and they’ll tell you electric toothbrushes are better at keeping teeth healthy and white and reducing stain build-up. 
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Have you had a stroke? Avoid calcium supplements if you want to escape the peril of dementia

Adults who take calcium supplements and whose brains are damaged are three times more likely to have dementia, researchers from the University of Gothenburg in Sweden found. Read more