Learn how our bone density has changed over human history as our lifestyles have become less physically demanding.
8/29/17 | 5:31
8/28/17 | 4:54
8/28/17 | 5:37
7/26/17 | 3:39
7/26/17 | 2:45
7/18/17 | 3:46
6/27/17 | 3:13
6/19/17 | 3:24
6/7/17 | 5:00
5/23/17 | 4:56
5/22/17 | 5:27
5/9/17 | 3:53
4/26/17 | 3:34
4/12/17 | 5:51
3/10/17 | 3:37
3/3/17 | 4:22
2/15/17 | 5:19
2/15/17 | 4:05
2/7/17 | 4:14
1/19/17 | 4:17
1/18/17 | 4:15
12/21/16 | 5:10
12/15/16 | 3:24
12/2/16 | 3:43
11/17/16 | 5:20
11/9/16 | 5:08
10/10/16 | 5:46
