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by B.J. Lehecka, DPT, PhD | May 12, 2021 Mixed evidence exists about the correlation between masturbation and ejaculation frequency on prostate cancer risk. One study found that increased masturbation frequency in the 20’s and 30’s was a marker for increased prostate cancer risk. One of the largest studies on ejaculation frequency (this included sexual relations, not masturbation in isolation) is known as the Harvard ejaculation study. Its findings are often simply described as 20-29-year-olds who reported 21+ ejaculations/month had a lower prostate risk than those who ejaculated 4-7x/month. But those who ejaculated 0-3x/month also had a significantly lower risk (15-16% reduction)...

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Article by: B.J. Lehecka, DPT, PhD Contribution by: Some data suggest males average a 17% cyclic increase in testosterone every 20-22 days. Those cyclic periods ranged from 8-30 days and 9-28% of average testosterone levels in study participants. Evidence also suggests peak testosterone levels in males may be more likely on weekends or in 28-day full-moon intervals (among males trying to conceive with a female partner).  Although there is other evidence that male testosterone levels do not change in relation to a partner’s ovulation. Testosterone concentration in males is higher in the fall, peaks in December, and is lowest in the late...

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“To fap or not to fap? That is the question.” Porn and masturbation are everywhere–comedy, music, TV, etc. and it seems like everybody’s doing it these days! In the world of “no-fappers” though (men who abstain from masturbation), you’ll find a shocking list of all-stars and real life superheroes. Who is and isn’t watching porn?  Let’s first break this down and look at who is and who is not watching porn and masturbating. First of all: No, not EVERYBODY is doing it. There are groups and programs online with hundreds of thousands of followers improving their lives through the benefits...

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by B.J. Lehecka, DPT, PhD | May 18, 2021 It’s difficult to separate the mental health effects of masturbation from the mental health effects of pornography because pornography use is strongly correlated with masturbation – 70% of the time they occur in the same week. When controlling for pornography use (which has many of its own effects on mental health), masturbation alone is still negatively linked to relational happiness. In a study of 2,810 partnered adults, masturbation was negatively correlated with sexual satisfaction, life satisfaction, relationship satisfaction, and mental health satisfaction scores. In a study of 2,450 adults, masturbating >15x...

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by B.J. Lehecka, DPT, PhD | May 13, 2021 Average internet pornography consumption was 75 minutes per week by males (which equates to about 10 minutes/day or 65 hours/year) and 17 minutes per week by females (15 hours/year) in a study of 832 adults aged 18-72 in 2016, and average use has been on the rise in recent years. In a 2020 study, 92% of men and 60% of women reported pornography consumption in the past month. The average age of first exposure to internet pornography was found to be between ages 12 and 15 in a 2016 study. Mental...

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