Is this a healthy place?

I spend a lot of time thinking about my health here in San Salvador and comparing it with my health back home in Arcata. On the whole I consider myself a pretty healthy person regardless of where I live, but there are some interesting differences.

• Skin. Ever since my teens, I've had eczema, mostly restricted to certain places on my right hand. In California, my affected skin is always dry and flaky, and at times it cracks and bleeds, which can get painful. I've learned strategies to manage it, but it's annoying all the same. Here in Central America, the problem just disappears completely with no special attention on my part. This alone is enough to make me consider staying here permanently.
• Allergies. Basilia and I both get hay fever in Arcata, starting around May and lasting through early July or so. Mine seems to have tapered off over the years, while Basilia's has unfortunately gotten worse. Again, here in Central America we both seem to be completely allergy-free, at least for the time being. I've heard that many people with allergies usually get only temporary relief, maybe for a couple of years, when they move to a new locale.
• Respiratory. Aside from the hay fever symptoms, I seldom have any respiratory trouble back home. Here the constant inhaling of vehicle fumes in the street seems to take its toll, giving me an intermittent upper respiratory infection. Of course, one also has to wonder about the long-term effects of frequent whiffs of thick black diesel exhaust...
• Bugs. Pretty much a non-issue living in Arcata. Here there are some nasty bug-transmitted illnesses to worry about, like dengue, chagas, and in some rural areas malaria. So far so good, but I seem to be way more sensitive than Basilia to fleas, as we can sleep in the same bed when we go to Guajiquiro and I end up covered in itchy bites, while she's totally unscathed.
• Fitness. Definitely worse here than in Arcata for me. Arcata's climate is mild enough to let me run or bike outdoors virtually year-round in reasonable comfort. Here it's challenging to find good times to walk or run. The filthy commute traffic gets heavy almost as soon as it's light in the morning, and when I return from work around 5:30 or 6:00 there's heavy traffic again, and little daylight left, even at this time of year. Lunch times are an option, but it's brutally hot this time of year. Sunday mornings are the only time in the week when there's little traffic during daylight hours. I go running alone and walking with Basilia when I can, but honestly it's not much fun here. I could join a gym that's nearby, but it's just not my thing. We bought a yoga mat so we can do stretching, abs and such at home. Running in the community forest and the marsh is one of the things I'm most looking forward to when we return to Arcata.
• Nutrition. Not a problem in either place. Our diet is definitely different here, not drastically so when we cook at home, but certainly high in fat and sodium when we eat out. I will really miss the fresh, delicious, and inexpensive tropical fruit and juices when we leave.
• Medical attention. Back home we have decent insurance, so I guess we're as well covered as the average insured person in the U.S. Here we have insurance too, from a different provider, which we fortunately have not had occasion to test. The one time I needed a doctor, for my vertigo problem, the whole bill for exam and prescription meds came to $55, not a lot more than the office visit co-pay under our insurance, so I decided not to go to the trouble of filing a claim.

So in the end I guess it's kind of a toss-up where I feel healthier. I'm thankful to be in good health most of the time in both places.