In women, aging already brings hormonal shifts related to menopause, which can affect libido, vaginal health, and comfort. In men, testosterone levels naturally decline over time, influencing energy, muscle mass, and s3xual desire. While reduced intimacy does not cause these changes, it can amplify their impact by removing one of the body’s natural sources of hormonal balance.

Impact on the immune system and sleep

Studies suggest that regular affectionate contact such as hugging, holding hands, or cuddling—can support immune function. When intimacy fades, especially physical touch, the body may experience higher levels of cortisol, the stress hormone. Elevated cortisol over long periods is associated with weaker immune response and increased inflammation.

Sleep can also be affected. Intimacy often promotes relaxation and deeper sleep through hormonal release and emotional security. Older adults who experience touch deprivation or emotional distance may notice more difficulty falling asleep, lighter sleep, or frequent nighttime waking.