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Shedding Light on How to Wake Up Refreshed

Genes play a role in how much sleep people need, but good habits can override a tendency to get too little sleep, which can trigger a cascade of health problems.

An inmate sleeps in his cubicle in the geriatric unit of the Estelle Prison in Huntsville.

Genes play a role in how much sleep people need, but good habits can override a tendency to get too little sleep, which can trigger a cascade of health problems. A good night’s sleep can be influenced by adjusting exposure to light and avoiding caffeine and exercise late in the day. (The Dallas Morning News)

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