Sleep
Learning Center
PSA levels: Can they rise after partial prostate removal?
A number of factors can cause PSA levels to rise after surgery for an enlarged prostate.
Melatonin side effects: What are the risks?
Melatonin is generally safe for short-term use but can cause side effects.
Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
Loss of sex drive in men: Natural with aging?
Age-related loss of sex drive is normal, but sometimes an underlying condition is at play.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
How many hours of sleep are enough?
Wonder how many hours of sleep are enough? A Mayo Clinic specialist offers guidelines.
Heart failure and sex: Is it safe?
Many people with heart failure worry that sex might harm their hearts. How do you know when sex is OK? Cardiac rehab and counseling can help.
HPV infection: A cause of cancer in men?
Learn what types of cancer human papillomavirus can cause and how you can lower your risk.
Frequent sex: Does it protect against prostate cancer?
Some studies have suggested that frequent ejaculation may reduce the risk of prostate cancer. But other research hasn't supported this idea.
Enlarged prostate: Does diet play a role?
Lifestyle factors such as diet appear to play a role in benign prostatic hyperplasia (BPH). See what lifestyle changes may help with symptoms.
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