Keyword Analysis & Research: why do we yawn when tired

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why do we yawn when tired	1.21	0.5	5015	16	25
why	1.34	0.1	5824	94	3
do	1.26	0.9	5024	22	2
we	1.06	0.3	5081	73	2
yawn	1.24	0.1	2032	41	4
when	0.03	0.7	8831	89	4
tired	1.16	0.8	2943	93	5

Keyword	CPC	PCC	Volume	Score
why do we yawn when tired	0.75	0.3	3684	69
why do we yawn when we are tired	1.88	0.2	1438	54
why do we yawn when we're tired	0.95	0.5	1387	57
why do we yawn when not tired	1.49	0.3	5815	89
why do we yawn when we are not tired	1.4	0.1	1053	42
when you yawn are you tired	1.5	0.3	6147	10
why do you yawn constantly	0.77	0.5	4701	3
what causes excessive yawning when not tired	0.68	0.1	5519	88
does yawning mean you're tired	0.15	0.4	6637	51
does yawning make you tired	0.67	0.2	396	68