Users are asked to share their location with Tinder so the app can recommend people within a certain distance. To make that feature work, Tinder has to record the last known location of each user.
Serotonin is known to be the most responsible in terms of neurotransmitters and depression. Serotonin is responsible for an array of functions most importantly being the mood and perception of a person.
Neurotransmitters control major body functions including movement, emotional response, and the physical ability to experience pleasure and pain. The most familiar neurotransmitters, which are thought to play a role in mood regulation, are serotonin, norepinephrine, dopamine, acetylcholine, and GABA.