How do you convince your partner to go to the doctor for a checkup?

This has been a source of contention in the past with my partner (41m). He doesn’t have health insurance and doesn’t want health insurance. He’s looked into low-cost clinics and assistance but has never actually gone.

He hasn’t been to the doctor in 10+ years and since we’ve broken into our 40s, I’d really like him to go. He has had high blood pressure since I met him in our 20s and it’s just getting higher.

How do you approach your partner about this? I’ve gently suggested for a while now, but no action on his part. I feel like letting go of the issue isn’t the right way to go.