Beware the Sulfites. Sensitivity to sulfites is common among asthmatics. For me, an allergic reaction can result in a severe asthma attack. Dried fruits are usually responsible for the reactions. As with all processed or manufactured food items, I consistently check labels.
In some rare cases, dropped frames can be caused by an old network adapter driver doing a poor job of handing the high speeds being consumed. It's not a bad idea to just check to see if there are any new drivers for your network adapter, just to be sure.
use a good fit in the frame. if they keep slipping, then there is obviously something wrong. Either the frame has been distorted or was never the correct fit. Take them back from where you purchased them, the optician would help. Try not to mishandle the frame as this can cause a change in the fit. Views.