Synephrine (or oxedrine) is a drug commonly used for weight loss. While its effectiveness is widely debated, synephrine has gained significant popularity as an alternative to ephedrine, a related substance which has been made illegal or restricted in many countries due to health risks and its use as a precursor in the illicit manufacturing of methamphetamine. There is however no occurrence of diverted synephrine for the manufacture of amphetamines, and the naturally occurring synephrine is, due to its phenolic group, unsuitable for such diversion. Products containing bitter orange or synephrine are suspected of causing adverse cardiovascular reactions. Synephrine is derived primarily from the immature fruit of Citrus aurantium, a relatively small citrus tree, of which several of its more common names include Bitter Orange, Sour Orange, and Zhi shi. Dietary supplements generally supply single oral doses of 3–30 mg, while as a pharmaceutical agent it is given orally or by parenteral injection in 20–100 mg doses as a vasoconstrictor to hypotensive patients.

John Earl Madden (born April 10, 1936) is a former American professional football player in the National Football League, a former Super Bowl-winning head coach with the Oakland Raiders in the American Football League and later the NFL, and a former color commentator for NFL telecasts. In 2006, he was inducted into the Pro Football Hall of Fame in recognition of his coaching career. He is also widely known for the long-running Madden NFL video game series he has endorsed and fronted since 1988.

Madden broadcast with Pat Summerall in the 1980s and 1990s, on CBS and later Fox. He was also the last color commentator for ABC's Monday Night Football before it moved to ESPN in 2006. His last regular role was as a commentator for NBC Sunday Night Football.

Madden has also written several books and has served as a commercial pitchman for various products and retailers. He retired from broadcasting on April 16, 2009 in order to spend more time with his family.

John Madden was born in Austin, Minnesota, to Earl Russell Madden and Mary Margaret (Flaherty) Madden. His father, an auto mechanic, moved the Madden family to Daly City, California, a suburb of San Francisco, when he was young. He attended middle school at Our Lady of Perpetual Help, and then Jefferson High School, graduating in 1954.

Tyson Gay (born August 9, 1982) is an American track and field sprinter. His primary events are the 100 meters and 200 meters. His personal bests establish him as the second fastest athlete in the 100 meters and the fifth fastest athlete in the history of the 200 meters, with times of 9.69 (which is a United States record) and 19.58 seconds respectively.

Gay has won numerous medals in major international competitions, including a gold medal sweep of the 100 m, 200 m and 4 x 100 meters relay at the 2007 Osaka World Championships. This made Gay the second sprinter to win all three events at the same World Championships, after Maurice Greene.

At the same meet, Gay suffered a severe hamstring injury in the 200 m event. The injury persisted and this contributed to his failure to win a single medal at the Beijing Olympics. As a participant in the US Anti-Doping Agency's "Project Believe" program, Gay is regularly tested to ensure that his system is clean of performance-enhancing drugs.

Gay also holds the record for the fastest non-winning time for the 100 meters. In August 2009, he ran 9.71 seconds in the World Athletics Championships from Berlin, Germany. Tyson Gay remains the only sprinter to have defeated Usain Bolt in a final since Bolt made his first world record run. Gay ran a wind assisted 9.68 at the 2008 US Olympic trials.

John Czawlytko (born February 22, 1963), better known by his ring name Max Muscle, is a retired Polish professional wrestler best known for his appearances in WCW in the mid-late 1990s.

Czawlytko began his career in 1992, wrestling under the ring name The Brute as part of the tag team the Skull Crushers along with The Beast (Bryan Carreiro).

He first appeared in WCW in 1993 under the name Big Bad John, making appearances on WCW Saturday Night, WCW Main Event and WCW Pro. In 1995 he was repackaged as Diamond Dallas Page's bodyguard, Max Muscle, memorably helping Page cheat in arm wrestling contests. In 1996, Muscle joined the Dungeon of Doom faction, shaving his hair into a mohawk and using the name Maxx.

Czawlytko retired from wrestling in 2002.