Summer heat poses health risks for workers, says Ulla Brusila-Relas in Sweden

Summer can be both delightful and challenging. As the heat intensifies, even sleep becomes a struggle. We consulted Ulla Brusila-Relas, a leading occupational health physician, about the impact of high temperatures on working adults. She notes that individuals with pre-existing health conditions are particularly at risk. “Heat stresses the heart, circulatory system, and respiratory pathways, especially for those suffering from coronary artery disease, hypertension, asthma, or chronic obstructive pulmonary disease. It’s crucial to stay well-hydrated to avoid dehydration.”

Is there a noticeable effect of heat on workplace health? Brusila-Relas reports some challenges related to stamina. The heat can diminish cognitive function, lead to poorer sleep, and hinder recovery. To combat this, she suggests taking a cold shower right before bed and using just a sheet instead of a blanket. Intense physical activity before sleep should be avoided to maintain proper temperature regulation for falling asleep.

Regarding sleep medications for those struggling with insomnia due to the heat, Brusila-Relas explains that older sedatives are used less frequently among working-age populations. Instead, melatonin, sleep-inducing mood medications, and perhaps antihistamines may be sought. However, she cautions that the use of these medications should be carefully considered in hot weather, as they can contribute to the body’s stress alongside the heat.

While extreme temperatures can be taxing for all, they particularly impact young children and the elderly. Research indicates that people tend to sleep better in cooler conditions. Light exposure also plays a significant role in our alertness. For individuals with sleep challenges, it is advisable to use blackout curtains to make the bedroom as dark as possible, signaling the brain of the day’s start when exposed to light. Conversely, alcohol, commonly used for relaxation, can disrupt sleep quality. Even one drink may impair sleep recuperation, suggesting that those who consume alcohol during holidays may require additional recovery time afterward. Despite the challenges of summer heat, cognitive rest remains possible during vacations, where individuals can better manage their sleep schedules outside of work commitments.