How to make Histogram based on the following data:

participant_id	light	vigorous
1	110	131
2	120	129
3	120	131
5	112	127
5	100	137
6	120	139
7	101	124
8	115	135
9	117	136
10	104	131
11	118	140
12	107	130
13	106	132
14	110	135
15	103	130
16	119	129
17	111	123
18	106	133
19	117	140
20	105	133
21	108	130
22	120	132
23	118	123
24	119	135
25	107	131
26	113	136
27	116	126
28	113	126
29	120	138
30	100	138
31	112	137
32	109	122
33	116	130
34	105	139