Caffeine

science-health

Caffeine is a central nervous system stimulant that promotes wakefulness by blocking adenosine receptors in the brain. Because its action can delay and reduce sleep quality, und...

beverages

At select Dunkin' locations, a new energy drink has been added to the menu, giving guests another way to support focus and alertness through the day. This overview explains what...

skin-care

Under-eye puffiness is usually fluid retention and mild inflammation around the thin lower eyelid skin, sometimes made more noticeable by volume loss or shadows. What consistent...

beverages

Starbucks Refreshers are fruit‑based cold drinks that also contain green coffee extract for caffeine. A tall (12 fl oz) typically ranges from about 45 to 55 mg of caffeine, wh...

food-and-drink

Starbucks protein coffee refers to ready-to-drink canned protein coffees and certain espresso-based drinks blended with protein and other nutrients. They are designed to combine...

Celebrity Profiles

Matcha is a finely ground powder made from shade-grown green tea leaves. Because you consume the whole leaf rather than an infusion, matcha delivers caffeine, L-theanine, antiox...

Food & Beverage

Panera Energy Lemonade is a ready-to-drink caffeinated beverage sold in Panera Bread cafés. It combines lemonade flavor with a modest amount of caffeine and B vitamins, positio...

health

Coffee is widely consumed for alertness, but many people also wonder whether coffee to help you lose weight is realistic. The short answer is that coffee, mainly through caffein...

health

If you’ve had one coffee too many, you know the jitters, racing thoughts, and clock-watching that follow. Because caffeine blocks adenosine, a chemical that promotes sleep pre...

Food & Drink

McDonald's Refreshers are fruit flavored, caffeine containing beverages made from a concentrated base mixed with carbonated or flat water. Caffeine content varies by base ingred...