Overview
- On January 6, Spanish and Argentine outlets highlighted cardiologist Aurelio Rojas’s advice on night showers, citing a 2019 Sleep Medicine Reviews meta‑analysis of 17 studies.
- The review reported that bathing or showering at roughly 40–42.5 °C one to two hours before bedtime reduced sleep latency and improved sleep efficiency and total duration.
- Rojas described a thermoregulatory pathway in which hot water induces skin vasodilation and heat loss, lowering core temperature as melatonin rises and stress‑related cortisol recedes.
- Reports offered practical guidance to let the body cool before bed, keep the bedroom temperature down, and limit bright light exposure from screens in the evening.
- Coverage noted tolerability varies and evidence skews toward healthy adults, warned against very hot water or washing right at bedtime, and described the night‑shower ritual as supportive of emotional closure and relaxation.