Research has shown that men who don't get 7 to 9 hours of sleep per night may have lower testosterone levels, negatively affecting their health.
Peak testosterone production occurs during your sleep hours, according to a review of testosterone and sleep research published in the February 2012 issue of the journal Sleep. So if you're losing sleep, you're also depriving yourself of testosterone production time.
The increase in testosterone is sleep, rather than circadian rhythm, dependent and requires at least 3 h of sleep with a normal architecture.
TESTOSTERONE. Testosterone secretion has a diurnal pattern of secretion. Peak levels are reached in the morning between 07.00 and 10.00, a trough is seen in the evening and levels then begin to rise again at night.
In addition to increased testosterone, there are other benefits to sleeping naked. Both Dr. Brewer and Howes say it's better for your skin because it allows this large organ to breathe better, and it's less likely for things like moisture to get trapped. This also helps prevent skin diseases.
Complicating matters, testosterone levels fluctuate, peaking around 8 a.m. and diminishing throughout the day. Levels tend to be lowest around 8 in the evening, then climb during the night.
High testosterone affects sleep. Having high levels naturally has been linked to more shallow sleep and feeling more tired after sleep deprivation. Having high levels from testosterone replacement therapy or abusing steroids has been linked to reduced sleep time and sleep efficiency, and increased light sleep.
Men with high testosterone can experience a variety of troubling symptoms and possible health consequences. Excess testosterone can lead to more aggressive and irritable behavior, more acne and oily skin, even worse sleep apnea (if you already have it), and an increase in muscle mass.
Testosterone is a hormone produced primarily by the testicles in men. It's also present in women's bodies, where the ovaries make it in small amounts. Research has shown that men who don't get 7 to 9 hours of sleep per night may have lower testosterone levels, negatively affecting their health.
Maintaining normal testosterone levels requires at least three hours of good sleep each night, Dr. Lynam says. But you need at least seven hours a night to get the rest your body needs to stay healthy.
Caffeine generally has a positive impact on testosterone levels. It has been shown that men that consume caffeine on a regular basis, on average, have more testosterone than those that don't. Not only this but the estradiol levels, both free and total, have been reduced.
Excess weight, hair-loss treatments, and a sedentary lifestyle are among the factors that can lower testosterone levels. If you're concerned about low testosterone levels, take a look at your everyday habits and way of life. They could be contributing to a drop.
Cold showers and exposure to cold temperatures have been shown to increase testosterone levels, which can indirectly impact sperm count. Higher levels of testosterone can stimulate sperm production and increase the motility of sperm, which can improve overall sperm count.
Testosterone levels rise during sleep and decrease during waking hours. Research has shown that the highest levels of testosterone happen during REM sleep, the deep restorative sleep that occurs mostly late in the nightly sleep cycle.
"However," he says, "evidence suggests men evolved deeper voices mainly for intimidating other men rather than attracting women." Studies show that men with deeper voices tend to have higher testosterone levels (an indicator of dominance) and a more athletic body type.
Your eyes and face will begin to develop a more angular, male appearance as facial fat decreases and shifts. Please note that it's not likely your bone structure will change, though some people in their late teens or early twenties may see some subtle bone changes.
Testosterone levels affect the skin much like estrogen. The higher your testosterone, the firmer and tighter your skin appears. In men, low testosterone (low-T) is associated with wrinkles, muscle loss, thinning hair, and weight gain.
As mentioned earlier, the normal range for testosterone is 270 to 1,000 ng/dl. If your assays indicate that your T level is lurking somewhere below 270 ng/dl, you may be silently suffering from hypogonadism. Much less likely is the opposite scenario: a T score that tops 1,000 ng/dl.
All Types of Exercise Count. Endurance training and resistance training (such as weight lifting) both boost testosterone levels briefly, Schroeder says. Lifting weights or doing other strength-training workouts has a bigger effect on your testosterone, Schroeder says.