Best Time for a Bedroom Romp Answer: Morning
Despite the turnoff of morning breath, having sex right when you wake up may be the best way to start your day.
For men, testosterone levels peak in the morning, resulting in a morning erection and a spike in libido that can leave men not only wanting sex but, some sex experts speculate, with increased stamina.
The hormones aren't all in men's favor: Sex releases feel-good endorphins and boosts production of oxytocin, a bonding hormone that also lifts mood, in both men and women. What's more, according to researchers at Wilkes University, sex boosts levels of IgA, an antibody that helps ward off infection. This means morning sex also means starting the day with a bolstered immune system.
Best Time of Day to Break a Sweat
Most people think of our circadian rhythms as affecting only our sleep and wakefullness, but researchers have found that other bodily functions run according to their own biolgoical clock. A study presented at Chest 2004, the annual international assembly of the American College of Chest Physicians, showed that lung function had its own natural rhythm throughout the day, dipping to its lowest at midday and peaking around late afternoon, around 4 or 5 p.m. So while we may feel tired and less motivated for that workout after the work day is done, that's when our lungs might be most up to the task.
Best Time of the Week to Stay Sober Answer: Saturday
It's OK to relax and let loose a bit come Friday, but people tend to be much more likely to drink beyond their limit on the weekends as well. According to a study published in the British Medical Journal, hospital admissions stemming from alcohol abuse were almost 70 percent higher on Saturday -- the result of late-night Friday and early-evening Saturday revelry.
Rule of thumb? One alcoholic drink per hour usually circumvents dangerous blood alcohol levels, but this of course varies according to gender, weight and tolerance.