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Health

Science Confirms: Regular Sex Strengthens Immunity, Heart Health, and Brain Performance

Medical research documents higher IgA antibody levels, lower cardiovascular risks, and enhanced cognitive function among adults with active, regular sex lives.

Health Science

September 10, 2026• 5 min read

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Science Confirms: Regular Sex Strengthens Immunity, Heart Health, and Brain Performance - Greenline News

Geneva / Boston: Clinical research confirms that regular sexual intimacy produces wide-ranging physical benefits. People engaging in sex once or twice a week exhibit substantially higher levels of immunoglobulin A (IgA), an antibody that defends against colds and influenza.

Studies also demonstrate that men having sex 2–3 times a week experience reduced incidence of cardiovascular disease. Furthermore, enhanced cerebral blood flow and the secretion of BDNF (Brain-Derived Neurotrophic Factor) foster memory retention and mitigate cognitive decline in older adults.