I would love any advice about how to carry bags in order to do the least damage to the spine. I read a previous forum post which commented on shoulder bags and messenger bags, and said "When possible it's good to distribute your bags evenly, but that isn't always possible."
In order to try to achieve the best possible situation, and distribute bags evenly, would you recommend a certain type of backpack / rucksack or recommend certain bag features?
I wonder what backpack features are most beneficial to the spine when carrying a heavy load such as a laptop? Some features I have read about include: wide shoulder straps, hip straps to keep the weight closer to the hips, and metal (internal and external) frames to help with vertical load transfer to the hips.
Is it better for the load's force to be directed toward the hips or is it better to have a backpack that only uses shoulder straps?