"Artificial stimulants" refers to substances or drugs that are created or made by humans to increase energy, alertness, or activity levels in the body. They are different from natural stimulants found in things like coffee or tea. Full definition
For research purposes, these cells hold an important advantage over those from blood in that they can be cultured without the use of artificial stimulants, which can alter the cells» behavior. (scientificamerican.com)
This highly addictive artificial stimulant hurts the liver, diminishing its power to keep your blood clean of toxins. (fitnessandpower.com)
Unlike artificial stimulants the energy boost in maca poses no danger of stressing your adrenal glands or giving you jitters. (ora.organic)