Type 2 diabetes is caused by things such as unhealthy lifestyles. Type 2 diabetes is something developed in life rather than you being born with it as you would with type 1.
Explanation:
I have many family members including a sibling that suffers with this chronic illness so I've been to plenty of doctors appointments with them and have had the pleasure to ask medical proffessionals questions as such.
Type 1 is where you’re born with it while Type 2 is where you develop it from eating unhealthy. Type 1 happens when the immune system starts attacking the pancreas so it makes it really hard to fight infections.
Unrealistic means not realistic, or that it probably won't happen. If you set unrealistic goals, you will get discouraged and stop doing it because you probably won't be able to.