Email writing tips with respect to understanding of human brain

Adopted from David Rock’s quote from Your Brain at Work

“1. Emails should contain as few words as possible. 2. Make it easy to see your central point at a glance, in one screen. 3. Never send an email that could emotionally affect another person unless it’s pure positive feedback. 4. Emotional issues must be discussed by phone; email should be used only to book a time for a call. 5. If you accidentally break rule number four, phone the person immediately, apologize, and discuss the issue by phone.”