Drugs mainly affect the brain. After taking drugs for a few days, your very addicted to the substance, and want a lot more of it. If you don't get more, it kills you confidence and well being, and this leads to depression and other seriously bad thoughts.
Dr Tyson excluded Pluto from the American Museum of National History exhibit because it is considered an icy body and not a planet.
Originally, he identified Pluto as a comet from the Kuiper Belt of Comets, since its composition its mostly ice, and stated that if it came near the sun it would evaporate and grow a tail, an uncommon behavior for a planet.
Eventually, in the 1990s, icy bodies were found in the outer solar system, and the similarity between Pluto and them was evident. The conclusion was that both are made of ice, have similar strange orbits, and cross the orbit of other planets.
Hey there!
Have you ever heard of the movie Hidden Figures?
It was about a group of women in times where they were denied a lot of things because of their gender. However, they took a stand, got into NASA, and were a huge part in the math needed to send astronaut John Glenn to space.
Hope this helps!