The answer lies in polyphenol oxidase, an enzyme that combines with oxygen to speed up cellular decomposition.
Myth 3: Hot peppers and green tea will speed up your metabolism.
But the most bizarre aspect was how time seemed to slow down and speed up without warning.
The administration has been trying to speed up the delivery of F-16 fighter jets and 24 Apache helicopters to Iraq.
We will strive to obtain those funds and speed up the process.
The road is fairly good, and I guess we can speed up enough to get out of the range of their bullets in a short time.
The war will speed up "belief" in some and "disbelief" in others.
The laws on divorce were designed to facilitate and speed up divorce proceedings.
If you'll speed up you'll get the jump on those fellows every time.
Always, she had been accustomed to moderation in the pace and a slowed camera to speed up the action on the screen.
Old English sped "success, prosperity, advancement," from Proto-Germanic *spodiz (cf. Old Saxon spod "success," Dutch spoed "haste, speed," Old High German spuot "success," Old Saxon spodian "to cause to succeed," Middle Dutch spoeden, Old High German spuoten "to haste"), from PIE *spo-ti- "speed," from *spe- "to thrive, prosper" (cf. Sanskrit sphayate "increases," Latin sperare "to hope," Old Church Slavonic spechu "endeavor," Lithuanian speju "to have leisure").
Meaning "quickness of motion or progress" emerged in late Old English (usually adverbially, in dative plural, e.g. spedum feran), emerging fully in early Middle English. Meaning "gear of a machine" is attested from 1866. Meaning "methamphetamine, or a related drug," first attested 1967, from its effect on users. Speed bump is 1975; figurative sense is 1990s. Full speed is recorded from late 14c. Speed reading first attested 1965. Speedball "mix of cocaine and morphine or heroin" is recorded from 1909.
Old English spedan "to succeed, prosper, advance" (see speed (n.)). Meaning "to go fast" is attested from c.1300. Meaning "to send forth with quickness" is first recorded 1560s; that of "to increase the work rate of" (usually with up) is from 1856. Related: Speeded; speeding.
The ratio of the distance traveled by an object (regardless of its direction) to the time required to travel that distance. Compare velocity.
An amphetamine, esp Methedrine2 (1960s+ Narcotics)