Hormones are chemical substances produced by glands in the human body that regulate the activity of cells or organs. These hormones are essential for every aspect of health and well-being. Here is a list of some of the major hormones in the human body and their primary functions:

• Adrenaline (Epinephrine): Increases heart rate and blood flow, leading to physical boost and heightened awareness.

• Norepinephrine (Noradrenaline): Works with adrenaline in response to stress, increasing heart rate, triggering the release of glucose, and increasing blood flow to skeletal muscle.

• Cortisol: Helps control blood sugar levels, regulate metabolism, reduce inflammation, and assist with memory formulation.

• Aldosterone: Regulates sodium and potassium levels, which helps control blood pressure and the balance of fluids and electrolytes in the body.

• DHEA (Dehydroepiandrosterone): Involved in the production of sex hormones, androgen and estrogen.

• Insulin: Regulates blood glucose levels by facilitating the uptake of glucose into cells.

• Glucagon: Helps to raise the concentration of glucose and fatty acids in the bloodstream.

• Somatostatin: Inhibits the release of various other hormones such as growth hormone and insulin.

• Pancreatic Polypeptide: Helps regulate both the pancreas and the gastrointestinal tract.

• Thyroxine (T4) and Triiodothyronine (T3): Regulate the body's metabolic rate, heart and digestive functions, muscle control, brain development, and maintenance of bones.

• Calcitonin: Produced in the thyroid gland, it helps to regulate calcium levels in the blood.

• Parathyroid Hormone (PTH): Increases blood calcium levels by stimulating calcium release from bone and decreasing its excretion in urine.

• Growth Hormone (GH): Stimulates growth, cell reproduction, and regeneration.

• Prolactin: Promotes lactation (milk production).

• Oxytocin: Involved in childbirth and lactation, also has roles in social bonding, sexual reproduction, and during and after childbirth.

• Antidiuretic Hormone (ADH or Vasopressin): Regulates water balance in the body by controlling the amount of water the kidneys reabsorb.

• Luteinizing Hormone (LH): In women, it triggers ovulation and stimulates the ovaries to produce estrogen and progesterone. In men, it stimulates the production of testosterone from the testes.

• Follicle-Stimulating Hormone (FSH): Stimulates the ovarian follicle in women and sperm production in men.

• Testosterone: Main male sex hormone, important for sexual and reproductive development.

• Estrogens: Group of hormones playing a key role in the development and regulation of the female reproductive system and secondary sex characteristics.

• Progesterone: Involved in the menstrual cycle, pregnancy, and embryogenesis of humans.

• Melatonin: Regulates sleep-wake cycles.

• Leptin: Regulates energy balance by inhibiting hunger.

• Ghrelin: Known as the "hunger hormone," it stimulates appetite and increases food intake.

• Endorphins: Natural painkillers produced in response to stress or discomfort.

• Serotonin: Contributes to feelings of well-being and happiness, also plays a role in controlling the body's sleep-wake cycles and internal clock.

• Dopamine: Plays a major role in the motivational component of reward-motivated behavior.

• Gastrointestinal Hormones (like Gastrin, Cholecystokinin, Secretin): Involved in digestion and absorption of food. They regulate the function of the gastric and intestinal glands.

• Thrombopoietin: Involved in the production of blood platelets.

• Erythropoietin (EPO): Stimulates the production of red blood cells in the bone marrow.

• Atrial Natriuretic Peptide (ANP): Reduces an expanded extracellular fluid volume by increasing renal sodium excretion.

• Brain Natriuretic Peptide (BNP): Works similarly to ANP and is secreted in response to heart ventricle expansion.

• Renin: An enzyme that participates in the body’s renin-angiotensin system—RAS that mediates extracellular volume (i.e., blood plasma, lymph, and interstitial fluid), and arterial vasoconstriction.

• Angiotensin II: Involved in vasoconstriction and increasing blood pressure.

• Calcitriol (Vitamin D3): Active form of vitamin D, crucial for the absorption of calcium.

• Human Chorionic Gonadotropin (hCG): Produced during pregnancy, it supports the normal development of an egg in a woman's ovary, and stimulates the release of the egg during ovulation.

• Inhibin: Inhibits the production of follicle-stimulating hormone (FSH).

• Relaxin: During pregnancy, relaxin helps prepare the pubic area and the cervix for the birth.

• Vasoactive Intestinal Peptide (VIP): A neuropeptide that has a range of physiological effects; it is involved in circulation, water and ion transport, smooth muscle relaxation, and secretions from various glands.

• Glucocorticoids (like Cortisol): Regulate metabolism, immune response, and stress response.

• Mineralocorticoids (like Aldosterone): Regulate salt and water balance, leading to blood pressure regulation.

• Androgens (like Testosterone and Androstenedione): Development and maintenance of male characteristics, but also present in women in smaller amounts.

• Chorionic Somatomammotropin: A hormone produced by the placenta, structurally similar to growth hormone but with different functions, including modulation of maternal metabolism.

• Insulin-like Growth Factors (IGFs): Play a role in childhood growth and continue to have anabolic effects in adults.

• Neurotensin: Involved in dopamine signaling and is believed to affect mood and stress responses.

This list gives a sense of the complexity and wide range of functions that hormones have in the human body. The balance and interaction of these hormones are crucial for maintaining homeostasis and overall health. Hormonal imbalances can lead to a variety of health issues, underlining the importance of these substances in our body's functioning.

It's important to note that this list might not be exhaustive as the study of endocrinology is continuously evolving, and new hormones or new functions of known hormones can be discovered. Additionally, many hormones have multiple functions and can act in different ways depending on their concentration, the presence of other hormones, and the target tissue.