keyword

what is the biological reason for crying

Monthly search volume and cost-per-click data for "what is the biological reason for crying" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+the+biological+reason+for+crying&country=us" +--------------+------------------+ | volume | 50 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-19 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
why do we cry	5,400	$0.04	17/20
why do we cry when sad	3,600	$0.03	17/20
why do we cry when we are sad	3,600	$0.04	15/20
why do humans cry	2,400	$0.03	18/20
why do people cry	2,400	$0.02	18/20
why do you cry	480	$0.02	13/20
why do we cry biologically	390	$0	12/20
why do humans cry biologically	40	$0	13/20
why do people cry biologically	40	$0.01	13/20
what is the biological purpose of crying	30	$0	15/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+the+biological+reason+for+crying&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt