Nootropics is the term given to a range of substances, both natural and pharmaceutical, that improve performance. The category includes everything from caffeine and Ritalin to L-theanine and opioids, but many of them are banned in professional sports. The World Anti-Doping Agency (WADA), for example, bans common stimulants like Adderall and Ritalin, as well as modafinil, a drug used to treat narcolepsy. Many of the most popular nootropics, though, are natural and entirely permissible.
Creatine is an excellent natural nootropic for runners because it facilitates the production of ATP, recycling energy consumed into new ATP molecules. Paired with choline, another natural substance found in everything from eggs to spinach and many beans, you’ll also experience less muscle fatigue during your runs. These nutrients provide an ideal, natural biohack.