70 BPM · Free heart rate app for iPhone
70 BPM: see what caused every heart rate spike
70 BPM lays your Apple Health heart rate over your calendar, so every spike has a name: the standup, the client call, the commute home.
Free to download · Optional Pro in-app purchases · Reads from Apple Health · Stays on your iPhone
Key facts
- Nature Human Behaviour (2021): in real-life blind dates, overt signals such as smiles and laughter did not predict attraction, but synchrony in heart rate and skin conductance between the two people did.
- The study could not say which way the link runs: shared arousal may create attraction, or attraction may bring bodies into step.
- The participants were strangers on a first date, so the findings do not directly describe long-term couples.
Does your heart rate go up when you see someone you like?
Short answer: Often, yes. Attraction and nerves switch on the body's arousal response, which can quicken your pulse. Heart rate rises vary between people and are easily mixed up with excitement or caffeine.
Research on dates measured synchrony between two people rather than a rise in one person, so treat a faster pulse as a common experience, not proof of anything.
Does your heart beat faster when you see your crush?
Short answer: For many people it does. Seeing a crush can trigger anticipation and nerves, releasing adrenaline that speeds the heart. The same response happens before a presentation or a race.
To check your own pattern, put the moment in your calendar and view it afterwards in 70 BPM. If your heart races with chest pain, dizziness or breathlessness, see a doctor.
Why does my heart race around someone I like?
Attraction, nervousness and anticipation switch on the sympathetic nervous system, the "go" side of the body. Heart rate and breathing rise, palms sweat and you may feel flushed. The body does not separate thrilled from frightened very well, which is why a first date can feel physically like a presentation. See heart rate during a presentation.
What does heart rate when in love look like on a chart?
- A climb in the minutes before you meet.
- Peaks at moments of eye contact, laughter or first touch.
- A settling pattern as you get comfortable.
Treat these as plausible patterns, not a test. The same chart can come from coffee, a rushed arrival or plain nerves.
How to see it in 70 BPM
- Wear an Apple Watch (or another device that writes heart rate to Apple Health) as normal.
- Put the date in your calendar as an event, for example Date night.
- Open 70 BPM and tap the event to see only the heart-rate readings inside it, next to the rest of your day.
Compare it with an ordinary evening with friends. 70 BPM is free to download for iPhone and reads from Apple Health on your device; see how it handles privacy.
Can a number tell me who is right for me?
No. Synchrony in a research setting is a group-level finding, not a verdict on one relationship. Enjoy the curiosity and keep it light.
When is a racing heart not romance?
If your heart races without a clear cause, or comes with chest pain, dizziness or breathlessness, treat it as a health question and see a doctor.
Not medical advice. 70 BPM shows heart-rate data your watch has already written to Apple Health. It is not a medical device and cannot diagnose or treat anything. In an emergency, call your local emergency number (911 in the US, 112 in the EU, 999 in the UK). If your heart rate is often high at rest, or you have chest pain, dizziness or breathlessness, see a doctor.