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Description
During oral sex on a penis, vagina, or anus, this lining can be exposed through saliva, semen, vaginal fluid, or direct skin-to-skin contact (CDC: STI Risk and Oral Sex)
Prior research has shown that alcohol increases cravings for tobacco smoking in both men and women 19
The effects of smoking on male reproductive health extend beyond semen quality and sperm DNA fragmentation
See more easy-to-pack options in our summer travel gear guide
Delaying decline in pulmonary function with physical activity: a 25-year follow-up
