Caffeine may be our quick-fix pre-workout, but how does it affect testosterone levels? Here's what the evidence says.

High caffeine intake can stimulate diuresis, but without causing damaging effects on hydration when taking moderate doses of ...

There is no need to brew. Research shows that instant coffee usually contains less caffeine than regular coffee. One 6 oz cup contains roughly 45 mg or an average of about 57.1 mg. Although the ...

Aspirin 300 mg + butalbital 50 mg + caffeine 50 mg Fiorinal® 1–2 tablets, q4h (max 6 tablets daily) Acetaminophen 325 mg + butalbital 50 mg + caffeine 50 mg Fioricet® 1–2 tablets ...

New Africa // Shutterstock Does caffeine help treat erectile dysfunction? Key takeaways: Some research suggests moderate ...

We used a growth model to assess individual growth trajectories. Results Compared with pregnant women with low caffeine intake (<50 mg/day, 46%), women with average (50–199 mg/day, 44%), high ...

Find yourself tired all the time and lacking energy? We've rounded up the best vitamins you need to get through the day.

The EFSA opinion advises that ‘Habitual caffeine consumption up to 200 mg per day by pregnant women does not give rise to safety concerns for the foetus. Single doses of caffeine and habitual caffeine ...

“Energy drinks, tea or even caffeinated sodas could be used, but keep in mind that different beverages have varying amounts ...

As a staple for indigenous South Americans, this drink is traditionally turned to for far more than just a caffeine boost.