What are the potential risks of combining caffeine with stimulants or other psychoactive substances?

Mar 6, 2025 ... High doses (250-500 mg) can result in restlessness, nervousness, insomnia, and tremors. As the dosing increases, caffeine can eventually cause ... Researchers have found that caffeine consumption prior to sleep results in increased time in lighter sleep stages and less time in slow wave sleep (SWS). Feb 6, 2025 ... Keep in mind that the caffeine content of a cup of coffee or tea can vary. Factors such as how the product is grown and brewing time affect the ... Caffeine is found naturally in tea and coffee. But it is added to energy drinks and many types of soda. It's even put in some snack foods and medications. More ... Caffeine is a methylxanthine-class psychoactive and central nervous system stimulant that is legal throughout the world, apart from the other psychoactive ... Dec 16, 2020 ... Dr. Conroy recommends avoiding it at least three hours before bed. "It's sedating at first, so it can help you fall asleep, but can interfere ... Yes, cacao powder contains small amounts of caffeine, but it is significantly lower than that found in coffee or tea. Cacao powder is derived from raw cacao ... Caffeine is a chemical found in foods and drinks. It can stimulate your brain and nervous system. It is found in: Caffeine is classified as a drug because it stimulates the central nervous system. It can make people feel more alert and energetic, and has similar effects in ... Dec 27, 2023 ... Energy drinks are beverages that typically contain large amounts of caffeine, added sugars, other additives and legal stimulants such as guarana, taurine and L ...