Hi Friends,
Summer sunshine can lift our spirits, but rising temperatures bring new challenges—especially when it comes to brain health. Dehydration and overheating can have a significant impact on cognitive function, making it essential to stay cool and well-hydrated in the warmer months.
The Hidden Effects of Dehydration
Even mild dehydration can impair concentration, memory, and mood. For those experiencing cognitive decline—or caring for someone who is—these effects can be even more pronounced. Our brains are highly sensitive to changes in fluid balance, and when we’re not properly hydrated, everything from decision-making to short-term recall can suffer.
Older adults are particularly vulnerable because their sense of thirst often decreases with age. In those with dementia, this can make it even harder to recognize when the body needs fluids.
Simple Ways to Stay Brain-Healthy and Hydrated
☀️ Start early. Begin hydrating in the morning and continue throughout the day. Waiting until you’re thirsty means you’re already playing catch-up.
???? Aim for water-rich foods. Cucumber, watermelon, oranges, and leafy greens can all boost hydration.
???? Flavor naturally. Add a splash of lemon, mint, or berries to make water more appealing—especially for those who may resist plain water.
???? Offer small, frequent sips. Large glasses can feel overwhelming. Try a few ounces every hour instead.
???? Avoid excess caffeine and alcohol. These can increase fluid loss and contribute to brain fog.
Staying Cool—Inside and Out
Beyond hydration, temperature regulation matters. Heat stress can worsen confusion and fatigue. Here are a few gentle reminders:
???? Stay in the shade or indoors during peak heat hours (10am–4pm).
???? Use fans or cooling towels for comfort.
???? Light clothing, hats, and regular rest breaks can go a long way in keeping the body—and brain—cool.
Supporting your cognitive health isn’t just about what you do—it’s also about how you adapt to your environment. In the heat of summer, that means giving your brain what it needs most: water, rest, and care.
Stay cool, stay hydrated, and know that every small step supports a healthier brain.
Warmly,
Dr. Heather Sandison
P.S. I’m excited to share that I was recently hosted on the Less Stressed Life podcast to talk about reversing Alzheimer’s and neurodegenerative conditions. Listen here.