What can humanity do to slow down?

Messages used to take days, weeks or months to go from A to B, using messengers, and mail.
So did goods and people, using legs, horses, and horse drawn carriages.
Even just a few decades ago, if you wanted to order something from afar, you had to either go to a shop and request it, or use a catalogue, make a phone call, then wait a few weeks for your order to arrive.
Before the invention of the telephone, your employer could not reach you until the next workday, and even after, only if you were at home.
Nowadays everything has to happen instantly.
You can, and are expected to, travel anywhere in the world withing a few hours.
You order something online, and expect it to arrive the same day.
With e-mail and mobile phones, you are reachable, and expected to be, reachable 24 hours a day, no matter where you are.
Shops are expected to be open until late at night.

It has to stop.
Humans are not meant to live at this high a speed, under this amount of stress.
Humans are meant to gather berries in the forest, hunt a deer, whose meat will last their tribe for weeks, then go to sleep in a cave when the sun goes down.

What can humanity do, to slow down, to go back to a healthier way of living, and to undo the damage that the way of life mandated by modern western civilisation has done to the species?