After a stem cell transplant, you may notice that the way you feel in the heat has changed. You may become overheated more easily, feel tired faster, or do not tolerate hot weather as well as you did before treatment. There are several reasons this can happen. Understanding how your body responds to heat and taking steps to stay cool can help you manage the heat after a transplant.
Why heat may feel different after a stem cell transplant
There are multiple factors that may contribute to heat intolerance after a stem cell transplant.
Your body has been through intensive treatment, and recovery can take time.
Certain medications, dehydration, fatigue, changes in your body’s ability to regulate temperature, and other effects of treatment may make it more difficult to tolerate high temperatures.
People who experience graft-versus-host disease (GVHD) may also have skin or other symptoms that can be affected by heat and sun exposure.
The cause can be different for each person. Talk with your healthcare team if you notice a new or significant change in how your body responds to heat.
How to stay cool in the heat
There are several ways to help stay cool and comfortable during the summer months.
Stay hydrated
Drinking enough fluids is especially important when temperatures rise. Your body loses water through sweat as it works to keep you cool, which can increase the risk of dehydration.Water is not the only source of hydration. Fruits and vegetables with a high water content, like watermelon, strawberries, cucumbers, and oranges, can also contribute to your daily fluid intake.Your healthcare team can tell you how much fluid is appropriate for you, especially if you have been given specific instructions about your fluid intake.
Wear breathable clothing
Lightweight, breathable clothing can help your body stay cooler. When possible, avoid thick or heavy materials that can trap heat against your skin. UV-protective clothing can also be helpful when spending time outdoors. It provides additional protection from ultraviolet (UV) rays while allowing you to cover your skin.
Avoid the hottest part of the day
If possible, plan outdoor activities for cooler times of the day. Temperatures and UV exposure are often higher around the middle of the day. When you do need to be outside, look for shade, take breaks in an air-conditioned space, and avoid spending long periods in direct sunlight.
Know the signs of heat-related illness
It is important to recognize when being hot may be turning into something more serious. Symptoms of heat-related illness can include:
Dizziness
Headache
Nausea
Weakness
Heavy sweating
Muscle cramps
Confusion
If you start to feel sick in the heat, move to a cooler location and follow the guidance provided by your healthcare team. Severe symptoms, including confusion, fainting, or a very high body temperature, may require immediate medical attention.
Pay attention to your body
Recovering after a stem cell transplant is different for everyone. Your tolerance for heat may be different from what it was before treatment. Pay attention to how you feel and make adjustments to your schedule and activities when needed.
You know your body best. Always reach out to your healthcare provider if you develop new or worsening symptoms that might be related to heat intolerance or if you have questions about staying safe during warmer weather.
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