No, and I find it somewhat baffling that so many people seem to think along these lines.
For most people, making major, permanent lifestyle changes is much harder than using a CPAP machine. For people with chronically disrupted sleep, that gap is even wider.
Healthy diet and exercise are free in principle, but you have to choose extremely cheap options for them to actually be cheaper than a CPAP machine in practice.
It's not really "better for" someone with OSA because lifestyle changes alone only have a small effect on OSA severity. It's like going on a low-sodium diet when you have hypertension: it's not a bad idea, and it's almost always good for a few points of improvement, but only an utterly incompetent doctor would recommend it as the sole treatment.
For most people, making major, permanent lifestyle changes is much harder than using a CPAP machine. For people with chronically disrupted sleep, that gap is even wider.
Healthy diet and exercise are free in principle, but you have to choose extremely cheap options for them to actually be cheaper than a CPAP machine in practice.
It's not really "better for" someone with OSA because lifestyle changes alone only have a small effect on OSA severity. It's like going on a low-sodium diet when you have hypertension: it's not a bad idea, and it's almost always good for a few points of improvement, but only an utterly incompetent doctor would recommend it as the sole treatment.