Backpacks: How much is too much?

Once upon a time, I used to commute to Silicon Valley and carried around a bag with my laptop, paperwork, and other items.  I tried various kinds of bags, including a fashion shoulder bag, a messenger bag and finally a backpack.
I’m pleased to report that my little personal experimentation concurs with research on the topic.  [...]

ERGObaby!

A few months ago I had the opportunity to travel to Mali in West Africa while volunteering for Interplast on a medical mission.  While my duties on site had nothing to do with ergonomics per se, I could not help but notice the stunning posture of the Malians.  Their beautiful way of standing and their strong sense [...]