![]() ![]() This change in brain messaging is thought to benefit your mood and brain function. This causes a relative increase in other signaling molecules, such as dopamine and norepinephrine ( 5, 6). It stimulates the brain by blocking the effects of the neurotransmitter adenosine.Ĭaffeine has the ability to block the brain-signaling molecule adenosine. SummaryĬaffeine’s main effect is on the brain. Because it affects your brain, caffeine is often referred to as a psychoactive drug.Īdditionally, caffeine tends to exert its effects quickly.įor instance, the amount found in one cup of coffee can take as little as 20 minutes to reach the bloodstream and about 1 hour to reach full effectiveness ( 1). ![]() This combination further stimulates the brain and promotes a state of arousal, alertness, and focus. It may also increase blood adrenaline levels and increase brain activity of the neurotransmitters dopamine and norepinephrine ( 3). This blocks the effects of adenosine, leading to reduced tiredness ( 3). Normally, adenosine levels build up over the day, making you increasingly more tired and causing you to want to go to sleep.Ĭaffeine helps you stay awake by connecting to adenosine receptors in the brain without activating them. It functions by blocking the effects of adenosine, which is a neurotransmitter that relaxes the brain and makes you feel tired ( 2). That said, caffeine’s main effect is on the brain. 4812347277374 C4 Energy Non Carbonated 29.99 ///cdn/shop/products/c4-energy-still-12oz-ibr.jpg?v=1652399880 ///cdn/shop/products/c4-energy-still-12oz-ibr_large.jpg?v=1652399880 USD InStock Energy Drink 260547706942 50% Off Exclusive Sale 264044576830 All C4 Energy Products 264090026046 All Cellucor Exclude Sport 77245710447 All Supplements 365474834 CarnoSyn® Beta Alanine 33282981999 Energy Drinks 264011219006 Featured Products 364725970 Goals 264382840894 ShareASale Product Feed 267445272638 THE ELITE COLLECTION Going Places Powder Can'tĬ4 Energy ATTV_GLOBAL_EXCLUSION_TAG best-seller brand:C4 Energy category:Energy Drinks exclude-loyalty exclude_rebuy goal:Improve for Sport goal:Increase Energy otg-still promo exclusion promo-exclude rtd rtd-still ///cdn/shop/products/c4-energy-still-12oz-fp.jpg?v=1652399874 ///cdn/shop/products/c4-energy-still-12oz-os.jpg?v=1652399868 ///cdn/shop/products/c4-energy-still-12oz-wm.jpg?v=1652399780 ///cdn/shop/products/C4OTG_0792_AmazonUS_Mrktpl_FullModule_C4Still_12pack_IcyBlueRazz_Nutrition-BR.png?v=1652399774 32764503785534 12 Pack / 12oz / Icy Blue Razz 29.99 ///cdn/shop/products/c4-energy-still-12oz-ibr.jpg?v=1652399880 InStock 12 Pack 12oz Icy Blue Razz 32764503752766 12 Pack / 12oz / Fruit Punch 29.99 ///cdn/shop/products/c4-energy-still-12oz-fp.jpg?v=1652399874 InStock 12 Pack 12oz Fruit Punch 32764519841854 12 Pack / 12oz / Orange Slice 29.99 ///cdn/shop/products/c4-energy-still-12oz-os.jpg?v=1652399868 InStock 12 Pack 12oz Orange Slice 32764520595518 12 Pack / 12oz / Watermelon 29.99 ///cdn/shop/products/c4-energy-still-12oz-wm.Once consumed, caffeine is quickly absorbed from the gut into the bloodstream.įrom there, it travels to the liver and is broken down into compounds that can affect the function of various organs. This globally recognized certification is our investment that helps athletes of all levels to enjoy our products with confidence. Third-party tested, and athlete approved, C4 Energy is proudly NSF Certified for Sport®^.
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