Extreme heat affects men’s fertility, birth outcomes, says NUS study

Rising temperatures could further reduce Singapore’s resident total fertility rate, which dipped below 1 in 2023. - ST PHOTO: SHINTARO TAY

SINGAPORE (The Straits Times/ANN): Punishing hot weather affects not only a person’s health or work productivity but also affects couples’ fertility and birth outcomes, a project by the National University of Singapore (NUS) found.

Rising temperatures could further reduce Singapore’s resident total fertility rate, which dipped below 1 – a record low – in 2023. The rate refers to the average number of babies each woman would have during her reproductive years.