1. Having strong coffee or smoking right after waking up
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Strong coffee, especially one high in caffeine, can make the heart beat faster and temporarily raise blood pressure. Research has shown that caffeine can cause an instant rise in both systolic and diastolic blood pressure, with people at risk for hypertension being more sensitive to these effects. Caffeine can also slightly thicken the blood by causing mild dehydration and briefly reducing blood flow to the heart.
Cigarettes are even more dangerous. Nicotine causes the blood vessels to tighten, which leads to sudden spikes in blood pressure. Studies confirm that nicotine-induced vasoconstriction reduces coronary blood flow and contributes to vascular damage, significantly raising the risk of stroke and heart attack.
2. Eating fried, greasy foods for breakfast
