Many people find that regular physical activity gives them an unexpected benefit. They sleep better and wake up feeling more __1__, in part due to increased amounts of deep sleep. Deep sleep may play a role in the body restoring (恢复) itself __2__ , as opposed to REM (rapid eye movement) or dreaming sleep. Researchers have found that physical exercise, especially __3__ in the afternoon or early evening, produces more __4__ early in the night.
__5__ can also help you get a better night’s sleep in a number of indirect ways. The relaxation and tiredness __6__ by exercise can improve sleep.
Exercise encourages weight loss and also may __7__ depression. Exercising later in the day can also help delay the __8__ drop in your body’s temperature. The __9__ of exercise are especially important for older people, __10__ exercise has been shown to increase the amount of sleep senior adults get in a night and reduce the time it takes to fall asleep. But be sure you finish exercising at least 4 hours before bedtime－working out later than that could leave you too excited to fall asleep easily.  

A．conscious B．peaceful C．effective D．refreshed

A．physically B．mentally C．emotionally D．regularly

A．made B．done C．functioned D．conducted

A．night’s sleep B．dreaming sleep C．deep sleep D．REM

A．Exercise B．Dreams C．researchers D．Doctors

A．recovered B．strengthened C．caused D．reduced

A．increase B．relieve C．release D．arouse

A．nighttime B．daytime C．dinnertime D．lifetime

A．disadvantages B．benefits C．ways D．plays

A．yet B．if C．when D．since