7 000 000 000 000 000 000 000 000 000 : number of carbon atoms. To bring a universal perspective to this data, there are "only" 300 000 000 000 (300 billion) stars in our galaxy.

1 360 Kg : Weight of the brain. The brain is made up of 85% water. If it were a computer, it could perform 38 trillion operations per second. For comparison, one of the most powerful computers in the world, Blue Gene, could only handle 0.02% of these operations per second.

Human brain (Nervous system)
1375 g : Weight(2% of body weight)
Consumes 20% of oxygen
100 billion Neurons
2000 to 10000 Connection between each neuron : between
10 000 000 billion Signals per second
100 000 billion Axons (connections between neurons)
120 m/s : Communication speed of nerve fibers (Axons)
20 to 30% of connection are made at birth
50 ms : brain reaction to light
100 ms : brain reaction to a sound.
320 ms : brain processing speed of a thought
60 000 thoughts a day

100 000 km : length of blood vessels (96,500 km). Put end to end, their distance would be equivalent to the distance traveled by the Earth around the Sun in a day.

8 000 liters of blood pumped by heart per day.

20 040 breaths per day

100 800 beats per day

5 liters of blood

30 000 billion red blood cells

1 liter : the amount of blood filtered and cleaned every minute by our kidneys.

1 million : number of filter units in our kidneys.

37 200 billion cells

200 different cell types

35 billion epidermal cells

10 000 : number of taste buds on our tongue, each containing 50 taste cells

60 million sensory receptors

127 million retinal cells (eye). We can distinguish 10 million different colors

5 Million olfactory receptors. We can recognize 1 000 Billion odors

7 meters : length of our small intestine. It measures approximately 2.5 cm in diameter and the food passes through at a speed approaching 2 cm per minute

500 : number of different functions the liver performs, including breaking down red blood cells, making proteins, or detoxification.

525 billion : number of sperm a man produces in a lifetime. A healthy adult can release between 40 million and 150 million sperm in a single ejaculation.

2 million : number of ovarian follicles per ovary with which a woman is born. At the end of puberty, there are approximately 450,000 follicles per ovary. Only 400 of them can be fertilized.

206 Bones in an adult - 300 Bones in a child (they fuse as they grow)

100 000 hair follicles (hair). 100 hairs fall out every day

700 ml of sweat produced each day

640 Muscles

360 Joints