You get by on fewer than five hours sleep a night

Skimping on sleep not only results in dark bags under the eyes—it has also been linked to a shorter lifespan, says Dr. Casciari, who founded a sleep laboratory at St. Joseph’s Hospital. “Sleeping within the seven-hour range is optimal,” he says. Get to bed earlier if you have the symptoms of sleep deprivation, which include a lack of daytime energy, mental sluggishness, attention problems, or weight gain, Dr. Casciari says.

You love a good TV marathon

Binge-watching the latest season ofHouse of Cards is one thing; regularly gluing yourself to the TV is another. In a British Journal of Sports Medicine study of about 11,000 Australians ages 25 and older, researchers found that for every hour of television watched, adults cut their life expectancy by 22 minutes. What’s more, people who spent an average of six hours a day watching TV lived five years less than their non-viewing counterparts. “This effect is more about sitting and being inactive than the TV watching,” says Dr. Casciari. “When you sit for more than 30 minutes your body begins to deposit sugar into your cells, which makes it much more likely you’ll be overweight as well.” Whether you’re watching TV or at your desk, get up every 30 minutes to walk around, says Dr. Casciari.

You spend most of the day sitting

The dangers of a sedentary lifestyle are well-documented: People who spend most of their days parked in a chair are at increased risk forkidney disease, cardiovascular disease, and cancer, not to mentionobesity. 

Naturally, exercising regularly helps to prevent these health issues and keeps you living longer, according to a study from the British Journal of Sports Medicine. Study participants who exercised 150 minutes or more a week lived 10 to 13 years longer than the inactive bunch.

(To be continued…)

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