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keyword

smiling makes you happy psychology theory

Monthly search volume and cost-per-click data for "smiling makes you happy psychology theory" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=smiling+makes+you+happy+psychology+theory&country=us" +--------------+------------------+ | volume | 20 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-20 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
does smiling make you happier 390 $0 5/20
does smiling make you happy 390 $0 5/20
studies on smiling 90 $0 7/20
smile studies 90 $0 5/20
smile feeling 30 $4.14 8/20
psychological facts about smiling 30 $0 6/20
smiling doesn't make you happy 30 $0 6/20
smiling improves mood 20 $0 7/20
does smiling help depression 20 $0 6/20
smile research study 20 $0 6/20

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=smiling+makes+you+happy+psychology+theory&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