Outline at least three ways anna garcia should have modified her life to treat her medical conditions

1. Change of lifestyle, this means that whatever old and bad habits Anna was performing it should be revisited and deliberated well. These habits may had lead her to what her condition is now.
2. Consultation.
3. Social support from colleagues, family and peers. 

Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.