Productivity

to be more productive [1]

• listen to your body
• Ease mental constraints - eat, sleep, exercise

Time when you're hungry or tired or twitchy is low-quality time.

Improving it is simple: eat, sleep, and exercise.

• hard problems

break it down

设计思维 [2]

• 搞清自身需求（比如能给自己带来什么？） 进而定义真正的问题

[1]: http://www.aaronsw.com/weblog/productivity

[2]: 设计思维