the role that sleep plays in evolution

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
the role that sleep plays in evolution	0.48	0.4	973	13	38
the	1.53	0.3	6337	29	3
role	0.89	0.8	4840	11	4
that	1.54	0.2	2358	48	4
sleep	0.38	0.4	6501	85	5
plays	0.03	0.4	9119	36	5
in	0.39	0.6	1566	31	2
evolution	1.9	0.6	5970	29	9

Keyword	CPC	PCC	Volume	Score
the role that sleep plays in evolution	1.19	0.5	9052	71
evolutionary function of sleep	1.58	0.4	4010	13
the evolution of sleep	1.63	0.1	8930	58
evolution of sleep in humans	0.86	0.5	5138	10
evolution theory of sleep	0.4	0.9	4573	48
evolutionary insights into sleep evolution	0.18	0.2	1528	64
evolutionary psychology and sleep	0.41	0.6	7105	72
what is the evolutionary theory of sleep	0.57	0.5	8076	72
the origins and evolution of sleep	0.11	0.5	7295	67
why did sleep evolve	0.72	0.2	9425	74
evolutionary psychology theory of sleep	1.29	0.1	2016	69
evolutionary hypothesis about sleep	0.46	0.2	3522	36
the role of sleep	1.18	0.6	9772	37
the evolution and diversification of sleep	0.79	0.1	3408	87
why did sleeping evolve	0.08	0.4	4063	83
what are the biological functions of sleep	1.55	0.2	4890	72
what theories explain the function of sleep	0.72	0.7	6981	46