According to the Food and Drug Administration (FDA), 80 percent of adults in the United States consume caffeine on a daily basis, and they take in an average of 200 milligrams (the equivalent of two five-ounce cups of coffee) per day. With those numbers in mind, it actually begins to make (some) sense that a recent survey of over 7,000 people found that most of them said they’d prefer coffee over sex. That’s one popular stimulant!
There’s actually a lot more you need to know about everyone’s favorite legal drug—so here’s a crash course.

Caffeine has a positive impact on short-term and long-term memory. There’s been a lot of past research on caffeine’s effects on short-term memory, but recent studies are indicating benefits for long-term memory, as well. “Around 300 to 400 milligrams per day may protect against cognitive decline and Alzheimer’s,” says Jaclyn London, MS, R.D., a senior dietician at Mount Sinai Hospital in New York City. There is one caveat, though: “Getting enough sleep is also important in Alzheimer’s prevention, so keep that in mind if you’re caffeine-sensitive.”

Caffeine may enhance athletic performance. Taking in some caffeine about an hour before your workout or race may up your game. “We’re seeing statistically significant increases in alertness and decreases in reaction time,” says London. “Also cool, caffeine has been shown to decrease your perception of effort.” In other words, you can put forth more effort for what seems like the same amount of work.

The effects of caffeine are almost immediate. We can’t decide if this is neat or kind of scary. “Caffeine very easily crosses the blood-brain barrier, so the central nervous system is stimulated quickly,” says London. That means you’ll feel more alert instantly and continue to feel a big boost until effects hit their peak 30 to 60 minutes after consumption.

The caffeine content of coffee varies a lot. In a study published in the Journal of Analytical Toxicology, researchers found that a 16-ounce Starbucks coffee had 100 milligrams more caffeine than the same size from Dunkin’ Donuts. The study also showed that the same drink from the same chain can differ by 300 milligrams in its caffeine content, depending on which day you order it. London says a standard serving of coffee typically ranges from 90 to 225 milligrams.

The caffeine content of espresso is actually a whole lot less than coffee. Everyone thinks espresso is a caffeine powerhouse, but London says a single shot of espresso clocks in at 40 to 70 milligrams—much less than the average cup of coffee. Since you get more caffeine in drip coffee, ordering an espresso-based beverage like a cappuccino might be smart if you’re sensitive to the stimulant.

Caffeine doesn’t actually dehydrate you. Since 98 percent of caffeine is consumed in beverages, according to the FDA, you’re also probably hydrating at the same time you take it in. So although caffeine is a diuretic, it’s unlikely to truly dehydrate you. Still, that doesn’t mean you should drink caffeinated beverages alone exclusively. Enjoy them in moderation, and don’t forget that water is still the gold standard for hydration.

Caffeine sources aren’t just limited to beverages. Chocolate is also a major source, and caffeine can also be added to almost any food or substance—which is why you’ll also find caffeine in some medications, like Midol. If you have a heart condition or hypertension, check with your doctor before taking any pain relievers with caffeine.

Source: https://www.yahoo.com/health/7-things-no-one-ever-told-you-about-caffeine-91320215427.html

there are a lot of energy drinks products out there in the market which contains a lot of caffeine which is mostly found in must of energy drink and soft drinks in the market.

Product you can found in nigeria and outsite world which does not contain caffeine are below

1. Aloe Blossom tea.
2. FAB Forever Active Boost™

Aloe Blossom Herbal Tea® is a natural
blend of leaves, herbs and spices, specially
prepared to provide an outstanding flavor
and a rich aroma. Caffeine-free, it has been
formulated to leave you feeling revitalized.
Whether you drink it hot or prefer it iced, Aloe Blossom Herbal Tea® has a great
taste and is easy to prepare. Refreshing cinnamon, orange peel and
cloves impart a warm, fruity flavor, along
with allspice and ginger to soothe.
Combined with aloe blossoms from our
own plantations, this zero calorie,
refreshing tea is a great complement to your weight management program.

. Zero Calories!
. No caffeine
. If good for old age people
. If helps carm your narve

Click link below to Read more.

www.juohco.com/ads/buy-aloe-blossom-herbal-tea-no-caffeine-zero-calories/

FAB X Forever Active Boost™

Energy Drink provides a healthy alternative including vitamins, amino acids, and electrolytes without the calories, sugar or carbs. Do you ever wish you had more time to achieve your goals? Your time is your most valuable resource, and having enough
energy to power through your day can
help you achieve what you desire.
We created FAB X to help you stay aligned with your health and fitness goals, while still
enjoying the same great taste and benefits you’ve come to expect from FLP.

Not only is an immediate, quick energy boost necessary at times, but long term energy without the crash helps propel you through your busy lifestyle without compromising your fitness goals.

1. No colories,
2. no sugar, and no carbs
which make FAB the perfect go-to drink when you crave a refreshing pick-me-up.

Click link below to Read more

www.juohco.com/ads/improve-your-energy-fab-x-forever-active-boost-energy-drink/