A recent study found that a warm bedroom at night can affect heart health, particularly in older adults. When the body is exposed to heat, it works harder to circulate blood to the skin’s surface for cooling, causing stress and limiting recovery from previous day’s heat exposure.
Researchers studied 47 adults aged 72, monitoring their heart rate and sleep temperatures using high-tech fitness trackers and sensors in their bedrooms. The results showed that a bedroom temperature above 75°F increased the risk of “clinically relevant” drop in heart recovery by 40-80%.
Maintaining a cool bedroom temperature at around 75°F reduced stress responses during sleep for older adults. However, the study’s observational design does not definitively prove heat is the only cause of heart stress.
Source: https://www.foxnews.com/health/your-bedroom-temperature-could-putting-your-heart-serious-danger-study-warns