Dear MEL Topic Readers,
Why caffeine makes some people buzz - and others barely notice
Regular coffee, Nescafé, espresso, Starbucks latte, energy drink, Coke,
black tea, green tea, and chocolate all contain some caffeine. It doesn’t give
you extra energy itself but boosts alertness, helps you stay awake and focus, and
improves your mood and reaction times. While some people can slumber shortly
after drinking coffee, others have difficulty sleeping even hours after their
last cup. Why so? Caffeine is a central nervous system stimulant that blocks sleep-promoting
chemicals in the brain and triggers a wave of alert energy, but how long it stays
in the body varies by person. Ancestry seems to affect it to some extent, and smokers
and regular coffee drinkers are found to be less sensitive to caffeine. Other
factors also affect caffeine tolerance, such as medicines, pregnancy, and DNA. Knowing
how caffeine-tolerant you are and how much your favorite drinks or snacks
contain caffeine is one thing. Controlling the timing and amount of caffeinated
food/drink consumption is another thing to manage your caffeine and sleep
balance.
Read the article and learn what caffeine is and does to your body and
mind.
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