Early Sexual Debut Linked to Later Health Risks, Study Finds
A study from Shandong University in China suggests that the age at which someone first has sex may be linked to how they age physically and mentally later in life. Researchers analyzed data from 397,338 British adults and compared participants’ genetic information with the age they reported first having sex. The study was published in a medical and rehabilitation journal.
The findings indicated that people who became sexually active at a younger age were more likely to face a range of health and mental health problems later on. Those included higher rates of physical frailty, feelings of unhappiness, chronic breathing difficulties, and traits associated with attention deficit disorder and impulsivity.
Lead researcher Kaishian Wang said the timing of first sex may affect aging through several psychological and behavioral pathways. He added that no single behavior determines a person’s fate, but early life experiences can accumulate over time alongside mental health challenges and chronic disease risks. The researchers said early sexual debut is often associated with other risks such as illness, substance use, and poorer physical health during the teenage years, which can eventually affect life expectancy and vulnerability to age-related disease.
Co-author Dr. Long Sun said prevention and intervention across the life course could help reduce health disadvantages and promote healthier aging, and stressed the importance of early education. The article also noted that the broader trend in the United States is moving in the opposite direction, with the median age at first sex now 17 and rising. Among Gen Z, born between 1997 and 2012, only 30% of teens reported having sex in 2021, down sharply from more than half three decades earlier, a shift linked to more screen time, changes in dating culture, and the COVID-19 pandemic.
The piece also cited a global Durex survey placing Israel in sixth place worldwide, with an average first-sex age of 16.7. Iceland ranked first at 15.6, followed by Denmark at 16.1, Sweden at 16.2, and Norway at 16.5. At the other end were India at 22.9, China at 22.1, and Malaysia at 23. The article cautioned that the survey is about a decade old and that Israeli figures may since have changed.
