If your shoes feel tighter every summer, or your socks are leaving deep marks by the end of the day, you’re not imagining it. Swollen ankles and legs in hot weather are extremely common, especially for people over 60. Most of the time it’s simply how your body responds to heat — but it can occasionally be a sign of something that needs medical attention. Here are the three main reasons this happens, what actually helps, and the warning signs worth knowing. (Based on the insights of Dr. Suneel Dhand)
Reason #1: Your Blood Vessels Expand
Just like most things expand as they warm up, the veins in your legs widen in hot weather, which allows more fluid to leak into the surrounding tissue. Gravity makes this worse, since your feet and ankles are the lowest point of your body — which is why swelling tends to build throughout the day and is usually less noticeable first thing in the morning.
What helps: elevating your feet above heart level for short periods, even just 20 minutes at a time, can make a real difference when this is the underlying cause.
Reason #2: Your Calf Muscles Aren’t Pumping Enough
Your calf muscles work almost like a second heart — every step helps pump blood back up toward your heart. When you’re sitting for extended periods, whether it’s because it’s too hot to be active, you’re traveling, or just relaxing indoors, blood and fluid can start to pool around your ankles.
What helps: moving at least once an hour, even for just a few minutes. Walking, standing, rotating your ankles, or marching in place all help keep that pumping action going — even for people who find walking difficult, seated leg movements can help.
Reason #3: Underlying Medical Conditions
