Final answer:
Adrenaline, noradrenaline, and cortisol are the three hormones released when someone is experiencing stress. Each of these hormones has different effects on the body.
Step-by-step explanation:
When someone is experiencing stress, three hormones are released: adrenaline, noradrenaline, and cortisol.
Adrenaline and noradrenaline are released by the sympathetic nervous system and have effects such as increased heart rate, sped up breathing, and increased blood pressure. These hormones help prepare the body for immediate action in a stressful situation.
Cortisol, also known as a stress hormone, is released by the hypothalamus and adrenal glands. It has various effects on the body, including regulating metabolism, increasing blood sugar levels, suppressing the immune system, and enhancing the brain's response to stress.