In the last decade, a heated discussion about the distinction between sympathetic and parasympathetic nervous systems errupted. These are commonly known as the “fight or flight” versus the “rest and digest” systems with roles like increasing or decreasing heart rate and pupil size (background on the divisions of the nervous system below). For about a […]
Can we take a moment to appreciate how we’re bipedal (walking on two legs), because walking is really really hard. It takes us months and months to even waddle! Yet this is easy for other animals; a duckling waddles after a day. And four-legged animals can continue to walk (and trot!) after a complete spinal […]
Recent Comments