Fitness apps like Nike Training Club offering challenging workouts that provide a sense of achievement.
A neurotransmitter that plays an important role in arousal, attention, memory, and motivation.
A hormone that regulates sleep-wake cycles, often called the "sleep hormone," as it helps control the body's circadian rhythms.
Known as the stress hormone, it regulates a wide range of processes throughout the body, including metabolism and the immune response, having a significant role in helping the body respond to stress.