Why Do We Get Headaches in Hot Weather?

Summer is a time for enjoying the sun, beach, and socializing with friends, but for many, it’s also a time for headaches. While the heat may seem like the obvious culprit, experts suggest that it’s not the heat itself that causes headaches, but rather the factors that come along with warmer weather.

Dr. Nolan Pearson, a neurology fellow specializing in headaches at Cedars-Sinai Medical Center, explains that while weather is a common trigger for headaches, it’s likely the effects of hot weather rather than the heat itself. Research shows a correlation between heat and headaches, but it doesn’t prove causation. There are other environmental and lifestyle factors that can contribute to headaches during the summer, such as air quality, light exposure, and activity levels.

Poor air quality

is a well-known headache trigger. Heat waves can worsen air quality as various chemicals transform into ozone, a colorless gas linked to health problems. Hot weather can also trap pollutants from sources like coal plants and cars, increasing their concentration in the air.

Longer days and increased UV exposure

are also associated with summer. While bright light may not directly trigger headaches, it can exacerbate existing migraines in sensitive individuals.

Heat can also disrupt our routines, leading to lifestyle changes that increase the likelihood of headaches. For instance,

dehydration

is a known cause of headaches, and people may forget to drink enough water in hot weather. Furthermore, the heat can reduce appetite, leading to

fluctuations in blood sugar

that can trigger headaches.

Sleep disturbances

are another significant factor. Heat can make it harder to get a good night’s sleep, especially in a warm environment. Sleep deprivation is strongly linked to migraines and cluster headaches.

Instead of focusing solely on heat, experts recommend identifying individual triggers and addressing them. For instance, staying hydrated, eating regularly, and maintaining a consistent sleep schedule can help manage summer headaches. It’s also essential to be mindful of air quality and minimize exposure to bright lights, especially if you’re prone to migraines. Remember, understanding and managing these contributing factors can help you enjoy your summer without the headache.