One can find information on what causes Bipolar disorder in humans by using websites such as Wikipedia or NIHM that tells you everything you need to know about bipolar disorder and how it is caused in humans.
everywhere there are humans.
as long as humans
That cannot be known as bipolar disorder has existed through all recorded human history and therefor must have occurred in prehistoric times. It almost certainly existed as long as modern humans have existed and may even have existed in some of our pre-human ancestors.
It blocks us from seeing the stars and lowers our melatonin levels which causes sleep disorder
No, blue eyes is due to a chromosome, it's not a genetic disorder which causes humans to go blind.
Human nature
The tsetse fly. This insect feeds on the blood of animals and humans. It carry's a parasite that can invade your body resulting in a slow agonizing death locally known as sleeping sickness
your lungs
humans
The causes of carbon emissions are humans. We humans use fuel by DRIVING TOO MANY FUEL CARS AND TRUCKS!
The causes of carbon emissions are humans. We humans use fuel by DRIVING TOO MANY FUEL CARS AND TRUCKS!
toxins