There are many things that affect eating behaviour; and we are also all very individual with very different eating behaviours.  You can start to understand your own reasons for eating by asking yourself the 5Ws:
What: What are you doing?  (if your attention is not on eating, then you may overeat and not realize it)
Where: Where are you eating?  (you should have one place in your home where you eat, and only eat there)
Why: Why are you eating?  (are you actually hungry, or just bored/sad/lonely/socializing...)
When: When are you eating?  (if you eat about every 3 hours you are less likely to overeat, because you don't let yourself get so hungry that you will reach for anything)
How: How do you feel?  (emotions play a large role in why we eat what we eat)
Start thinking, start asking questions.
Steph Wheler
www.nutrishus.com