anybody could be depressed at some time.
It could be that you are depressed. You should go see your doctor.
The person could be depressed.
it could because i am very depressed and i have a week memory and i use to have good memory until i started to be depressed
Yes, if you are permenantly sad and depressed, then it could be lots of illnesses, including depression.
depressed
You could possibly be depressed or have a low thyroid.
He could be oblivious or not care.
Yes, cats too can get depressed and this may be due to an environmental change such as something changing in its environment, it can be seasonal depression and the cat could be depressed due to climate change in having to be inside or it could be clinically depressed in which i suggest making a lifestyle change for your cat such as new food or playing with it more, etc.
It can be possible as dogs can feel human's emotions and that could affect them.
This could be anorexia or the person could just be severely depressed.
That's not an official fact. However, sleeping less can make you snappy and raise your anxiety level, which could make you feel more depressed.
There are many things one could tell their friends if their friends tell them they are depressed. The best thing to do in this case would be to comfort one's friend and listen to them.