Ignoring these subtle signs can be dangerous. Research from The Lancet Neurology shows that the first 48 hours after a TIA are the highest risk period for a major stroke. Acting quickly—by getting checked, rehydrating, and managing blood pressure—can reduce that risk by more than 80%.
Awareness is the difference between prevention and crisis. The key is to recognize when something feels “off,” and not dismiss it as simple aging.
Why Mornings Are the Most Dangerous Time
Dr. Hinohara explains that the first hour after waking is the body’s most vulnerable window. Overnight, the body becomes mildly dehydrated, blood thickens, and stress hormones like cortisol surge.
At the same time, blood pressure naturally rises to help you wake up. For those over 60—especially people with stiffer arteries or mild plaque buildup—this combination creates a “perfect storm” that can trigger a stroke.
That’s why what you do right after waking up matters more than most people realize.
Morning Habit #1: Skipping Water
Most people reach for coffee before anything else. But after six to eight hours of sleep without fluids, your body desperately needs hydration. Skipping that first glass of water is one of the most dangerous mistakes you can make in the morning.
When you’re dehydrated, your blood becomes thicker, increasing the likelihood of clot formation. A study from the European Journal of Neurology found that nearly half of all first-time ischemic strokes were linked to poor morning hydration.
What to do instead:
Drink one full glass of water—room temperature or warm—before coffee, pills, or breakfast. This simple act rehydrates your brain, thins your blood slightly, and gets your circulation moving safely.
