Sleep On It

33 percent of adults don’t get enough sleep on a regular basis.

7 hours: Amount of sleep health care guidelines say Americans need

Risks: Obesity, diabetes, high blood pressure, heart disease and stroke

Source: Centers for Disease Control and Prevention

Mosquito Vampires and Ninjas?

If you’re a human, watch out. The female Aedes aegypti, the mosquito that spreads Zika, prefers human blood over other mammals.

Even worse, the females also act as mosquito ninjas, performing sneak attacks by approaching victims from behind and biting ankles and elbows, which helps them avoid getting smashed by a human hand.

Source: World Health Organization

Smoke and Mirrors

U.S. adults may not be smoking as much pot as originally thought. While a finding that showed about 12.5 percent of adults said they used marijuana at least once in 2013 is still accurate, adults' use of the drug didn't double from 2002 to 2013, which another study reported in the fall.

New findings from researchers discovered that marijuana use did rise 20 percent from 2002 to 2013, but it didn't double.

Source: National Institutes of Health

Don't Drink Your Energy

If you consume more than two energy drinks per day, you are at a greater risk of developing adverse heart reactions, including palpitations, a raised heart rate and chest pain.

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Researchers surveyed patients aged 13-40 admitted to a hospital ER and found 70 percent had consumed some sort of energy drink in their lifetime—36 percent in the last hour.

Those patients who were heavy consumers of energy drinks were found to have a significantly higher frequency of heart palpitations than those who consumed less than one per day.

Source: International Journal of Cardiology

Less Work, Better Health

Those living the retired life can enjoy the following health benefits:

93 minutes per week: Increase in physical activity, according to participants surveyed

63 minutes per day: Decrease in amount of time spent sedentary

11 minutes per day: Increased sleep

50 percent of all female smokers quit after going into retirement.

Source: American Journal of Preventative Medicine

Testosterone Treatment

A new study found that by raising testosterone levels in older men, their sexual activity improves.

Participants received a testosterone gel to offset their naturally declining levels, and the trials looked at sexual function, physical function and vitality.

Testosterone treatment increased levels to the mid-normal range for men 19 to 40 years old, but had no significant benefit to vitality nor physical function like walking. However, men who received the testosterone gel did report slightly better mood and lower severity of depressive symptoms than those who received a placebo.

Source: New England Journal of Medicine