Summer can bring sun, fun, and good times, but it can also bring high temperatures that cause discomfort and can impact our brain functioning. When temperatures rise above 70°F, we feel overheated and begin to sweat.

This is our body’s way of regulating temperature and cooling us down. However, when temperatures rise beyond our optimal range, our bodies and minds begin to suffer. In this article, we will discuss the cognitive toll of high temperatures and how they can impact our everyday lives.

How Does Temperature Affect Our Brains?

Numerous studies have been conducted to determine the effects of temperature on cognitive function.

The research shows that exposure to high temperatures can cause fatigue, slower reaction times, increased errors, and decreased attention and concentration. According to a study published in the Journal of Environmental Psychology, even moderate increases in temperature can lead to significant reductions in cognitive performance.

In another study published in the Journal of Occupational and Environmental Medicine, researchers exposed participants to four different temperature conditions ranging from 59°F to 89°F.

The study found that participants exposed to the higher temperatures experienced a significant decline in cognitive ability, including slower reaction times, poorer memory recall, and reduced task completion times. They also reported feeling fatigued and less alert.

Heat Stress and Its Effects on the Brain

Heat stress is a condition that occurs when our bodies are unable to cool down effectively. This can happen when we are exposed to high temperatures for an extended period, or when we engage in physical activity that raises our core body temperature.

When our bodies can’t dissipate heat effectively, our core body temperature rises, and we can experience several symptoms that can impact our cognitive performance.

One of the most common symptoms of heat stress is fatigue. When we are tired, our cognitive performance suffers, and we are less able to focus and concentrate.

We may also experience headaches and dizziness, which can further impact our ability to function. In extreme cases, heat stress can lead to heat exhaustion, which can cause confusion, disorientation, and loss of consciousness. These symptoms can be dangerous, and it’s essential to take steps to avoid heat stress.

Here are some tips for staying cool and avoiding heat-related cognitive impairment:.

1. Stay Hydrated

Drink plenty of water, and avoid drinks that contain alcohol or caffeine, which can dehydrate you.

2. Dress Appropriately

Wear light-colored, loose-fitting clothing that allows your skin to breathe. Avoid dark colors, which absorb heat.

3. Use Fans and Air Conditioning

If you have access to air conditioning, use it to maintain a comfortable temperature indoors. If you don’t have air conditioning, use fans to circulate the air and keep you cool.

4. Take Breaks and Rest Often

If you work outside or engage in physical activity in high temperatures, take frequent breaks and rest often. This will help prevent heat stress and keep you from becoming fatigued.

5. Stay Indoors During the Hottest Parts of the Day

Avoid being outdoors during the hottest parts of the day, typically from 10 am to 4 pm. If you must be outdoors, seek shade, and take frequent breaks indoors to cool down.

The Bottom Line

High temperatures can impact our cognitive performance, making it more difficult to focus and concentrate. It’s essential to take steps to stay cool and avoid heat stress whenever possible, particularly during the summer months.

By staying hydrated, dressing appropriately, using fans and air conditioning, taking frequent breaks, and staying indoors during the hottest parts of the day, you can help protect your brain’s functioning in high temperatures.