Diabetes affects our blood vessels and nerves and therefore can affect any part of the body. However, certain parts of our body are affected more than other parts.
I don't think dogwoods have (much?) scent, maybe just lightly floral. The white petally looking things are not actually petals they are bracts, like a poinsettia has. There's something called an English dogwood that is very fragrant, but it isn't a true dogwood and is also known as mock orange. Bradford pears have a smell that this author described as sweaty socks, so if your tree doesn't smell very good that's probably it: http://www.gardenguides.com/106133-dogw ...
A dogwood is any of the 30-50 species of shrubs or trees that belong to the family Cornaceae.Dogwoods are deciduous, in the sense that they lose their flowers some time of the year. dogwood is any of the 30-50 species of shrubs or trees that belong to the family Cornaceae.