The characteristics of the first house in Astrology

The First House in your horoscope is you. It's also called as Lagna or ascendant or with the Roman letter “I” in many charts.   The following are the characteristics of the first house which are essential while making prediction about one's appearance, character, health, etc.,

1native (the individual, you)
2your physical appearance
3your health
4your character, personality
5your way of thinking
6your residence, whether local or foreign
7changes in life
8head
9people of a country in mundane     astrology
10the questioner in prasanna astrology
11gains of your younger brother
12.  fame of your mother
13.  Your first child's higher study
14dangers of your maternal uncle

How to make the above predictions?
Making prediction is as easy as ABC in astrology. Take your horoscope and see the planets in the first house. Combine the characteristics of the first house and that of the planet in the first house that is what will happen in your life. For example, if Saturn is in the first house, the person will be short. But if the planet is Jupiter or sun or mars, then the person will be tall. (First House= height of a person + Saturn = short). Why does first house stand for the higher study of your first child? Because it's the ninth house (higher study) counted from fifth house (your first child)

Note: it's only for making General and basic predictions.  For advanced accurate predictions, one has to analyse, dasa bhukti, and transit of the significators of the first house.