The human body is incredibly complex. It consists of about 30 trillion cells organized into around different cell types. It contains miles of nerves and blood vessels and about 20 square feet of skin. There are about 100 trillion connections between the different cells in the human brain. Yet despite all this complexity, we all started life as a single cell. To get from one fertilized egg to an adult organism, cells have to differentiate—that is, they have to change their contents, shapes, behaviors, etc. All of this differentiation is coordinated by the release and reception of signaling molecules, like hormones and neurotransmitters.
The following images are inspired by (but do not accurately depict) some of the hormones and neurotransmitters that are known to play a role in human development and behavior.
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/147a3b187190865.65831f3b17c24.jpg)
Noladin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/887c7f187190865.65831f3b0c47c.jpg)
Noradrenalin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/5198ee187190865.65831f3b0f28a.jpg)
Norepinephrine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/fc3d85187190865.65831f3b16d6e.jpg)
Nortestosterone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/53a786187190865.65831f3b10809.jpg)
Nucleobindin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/2ccdf3187190865.65831f3b1f362.jpg)
Nymphetamine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/68fd17187190865.65831f3b1a9c1.jpg)
Octopamine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/eaebab187190865.65831f3b0e146.jpg)
Oleoylethanolamide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/a34704187190865.65831f3b0ac21.jpg)
Oncostatin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/7fd406187190865.65831f3b11869.jpg)
Opiorphin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/25ac0d187190865.65831f3b20217.jpg)
Orexin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/89d0cb187190865.65831f3b15d9d.jpg)
Orphanin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/a22d21187190865.65831f3b22d5b.jpg)
Osteonectin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/9d1726187190865.65831f3b0b707.jpg)
Oxoprogesterone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f3125e187190865.65831f3b21239.jpg)
Oxytocin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f61a51187190865.65831f3b09bc7.jpg)
Palmitoylethanolamide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/60e6eb187190865.65831f3b0d23a.jpg)
Pancreatic Polypeptide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/448c25187190865.65831f3b1d9d4.jpg)
Parathormone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/b46d42187190865.65831f3b18d01.jpg)
Parathyrin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/2ad3fa187190865.65831f3b19b97.jpg)
Persephin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/a1d58a187190865.65831f3b1266f.jpg)
Phenethylamine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/0623c7187190865.65831f3b1c795.jpg)
Pituitary Adenylate Cyclase-Activating Peptide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/ee8202187190865.65831f3b149af.jpg)
Pituitary Adenylate Cyclase-Activating Polypeptide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/04eb1b187190865.65831f3b132ca.jpg)
Platelet-Derived Growth Factor
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/7e628c187190865.65831f3b1e804.jpg)
Prebediolone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/954965187190865.65831f3b21f29.jpg)
Pregnane
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f8cebc187190865.65831f3b2a413.jpg)
Pregnanediol
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/c25569187190865.65831f3b292df.jpg)
Pregnanedione
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/770716187190865.65831f3b23f38.jpg)
Pregnanolone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/8f9a4a187190865.65831f3b25d8c.jpg)
Pregnenolone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/66c69a187190865.65831f3b3cc9d.jpg)
Progesterone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/0567b8187190865.65831f3b26bd0.jpg)
Progranulin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f786ef187190865.65831f3b34c7d.jpg)
Prolactin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/0ad533187190865.65831f3b286d6.jpg)
Prolactin-Releasing Peptide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/e544f4187190865.65831f3b374f0.jpg)
Prostacyclin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/b78284187190865.65831f3b2c195.jpg)
Prostaglandin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/ade007187190865.65831f3b303d6.jpg)
Prostamide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/3893a9187190865.65831f3b2dd42.jpg)
Protectin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/2383a6187190865.65831f3b24ecc.jpg)
Relaxin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/0db1ee187190865.65831f3b31fe2.jpg)
Renin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/62718e187190865.65831f3b2ea73.jpg)
Resistin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/8384a9187190865.65831f3b35b26.jpg)
Resolvin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f3364f187190865.65831f3b32ad4.jpg)
Retinol Binding Protein
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/ec78b5187190865.65831f3b31162.jpg)
RFamide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/9da5dc187190865.65831f3b37fa0.jpg)
Sauvagine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/671945187190865.65831f3b33eda.jpg)
Secretin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/994bfa187190865.65831f3b277ed.jpg)
Secretogranin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/1f24c0187190865.65831f3b2b26b.jpg)
Sepranolone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/124eae187190865.65831f3b3e553.jpg)
Serine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/1d68d0187190865.65831f3b2cf6a.jpg)
Serotonin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/44ae89187190865.65831f3b3897f.jpg)
Serpin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/a3d7ff187190865.65831f3b39419.jpg)
Somatocrinin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/ef7d65187190865.65831f3b3b64e.jpg)
Somatomedin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/098446187190865.65831f3b3abf1.jpg)
Somatostatin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/380dc8187190865.65831f3b3f162.jpg)
Somatotropin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/93c48a187190865.65831f3b4e390.jpg)
Spinorphin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/6bff26187190865.65831f3b3c0f1.jpg)
Stanolone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/966624187190865.65831f3b39eee.jpg)
Synephrine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/8cc88a187190865.65831f3b3d963.jpg)
Tachykinin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/9eac26187190865.65831f3b3fbea.jpg)
Testosterone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/e74b03187190865.65831f3b414b2.jpg)
Tetrahydrodeoxycorticosterone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/87ecd5187190865.65831f3b430c4.jpg)
Tetrahydroprogesterone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f1566b187190865.65831f3b47365.jpg)
Thromboxane
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/6abf04187190865.65831f3b40910.jpg)
Thyrotropin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/bd3114187190865.65831f3b48aa4.jpg)
Thyrotropin-Releasing Hormone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/6e9a6c187190865.65831f3b44ab5.jpg)
Thyroxine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/4ee280187190865.65831f3b46571.jpg)
Timnodonic Acid
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/a1096c187190865.65831f3b480a5.jpg)
Transforming Growth Factor
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/473fff187190865.65831f3b4a96f.jpg)
Transthyretin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/a4884d187190865.65831f3b42089.jpg)
Trihydroxyestrin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/111bdf187190865.65831f3b4943e.jpg)
Trihydroxypregnenolone
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/7da153187190865.65831f3b4c1f0.jpg)
Tryptamine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f68b77187190865.65831f3b49e32.jpg)
Tumor Necrosis Factor
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/bcedb3187190865.65831f3b4b4a6.jpg)
Tyramine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f71b58187190865.65831f3b458ae.jpg)
Ubiquitin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/e3aa2a187190865.65831f3b43f5e.jpg)
Urocortin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/c26944187190865.65831f3b4d480.jpg)
Urodilatin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/6df64f187190865.65831f3b54968.jpg)
Urotensin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/18f0d6187190865.65831f3b51191.jpg)
Valorphin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/d74137187190865.65831f3b4f290.jpg)
Vascular Endothelial Growth Factor
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/24e2fe187190865.65831f3b5684c.jpg)
Vasoactive Intestinal Peptide
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/ff7de0187190865.65831f3b52e64.jpg)
Vasopressin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/323b87187190865.65831f3b5004a.jpg)
Vaspin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/afd891187190865.65831f3b558c3.jpg)
Virodhamine
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/0d9870187190865.65831f3b51fc9.jpg)
Visfatin
![Ai Art stable diffusion hormones Neurotransmitters](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/f26806187190865.65831f3b53c25.jpg)
Vomeropherines
These illustrations were drawn using Stable Diffusion 2.1.