Spring Suicide Surge in Korea: Depression Cases Top One Million

Spring traditionally brings longer daylight and warmer weather, yet suicide rates in Korea rise 20‑30% above winter levels. Researchers term this the “Spring Peak,” noting that increased sunlight can disrupt circadian rhythms and trigger hormonal shifts that worsen mood in vulnerable individuals. Social changes such as school graduations, job transfers, and new semesters add pressure, especially for people in their 20s and 30s who already experience emotional volatility.

National surveillance data show that 3,488 suicides occurred from March to May 2022, representing 27% of the year’s total of 12,906 deaths. April contributed the highest monthly count with 1,198 cases. Meanwhile, administrative records from the National Health Insurance Service indicate that depression patients grew from approximately 590,000 in 2013 to about 1,000,000 in 2022—a near‑doubling over ten years. This increase spans all age groups, with the sharpest rise among young adults. The data come from population‑based cohort surveillance, not a randomized trial, so they describe correlation rather than prove causation.

For individuals, persistent lethargy, insomnia, appetite loss, or weight changes lasting more than two weeks warrant professional evaluation; cognitive behavioral therapy is the first‑line treatment for insomnia linked to depression. For communities, expanding access to digital mental‑health tools and monitoring seasonal patterns could help allocate resources before the spring surge. Public health officials should watch whether upcoming policy changes—such as expanded workplace mental‑health leave or school‑based screening—alter the seasonal trend in suicide and depression rates.