I have a ton of these things. I used to think they were inflamed and knotted muscles, but my massage therapist tells me otherwise. I have a hard time telling which lumps are lipomas and which ones are myofascial trigger points, especially since most of them are in my back, so I'm not sure if any of mine are painful.
Humidity. The most common cause of condensation on double-glazed windows is humidity. The outside window is colder than the inside window causing fog or frost to build up in-between the two panes. The window and house is extremely airtight and cannot breath.
Windows and doors account for a significant portion of heat loss, so any measures you can take to prevent this happening are worth considering and will help you save on your energy bills. Read this guide for essential information about window insulation and double glazing. How much heat is lost through windows? If your windows only have single glazing, then it's likely that you'll be losing up to 20% of heat through them. Windows and doors account for a significant portion of heat loss, so any measures you can take to prevent this happening are worthwhile, and will save on your energy bills. What can I do to prevent heat loss through windows? One obvious measure is to replace windows and doors, including frames, with double - or triple - glazing. This reduces heat loss through the windows and resolves any issues with draughts as well. This can, however, be very expensive, especially if you opt for uPVC frames. The cost of double glazing can run into several thousand pounds and it will take decades to recover this in savings on your bills.