If the walls and ceilings of the house are not insulated when it is cold outside if you touch them, they are cold. When there is no insulation is is also common for water to condense on the surface and create dampness on walls and ceilings.

SWL (blue) illumination significantly disrupted sleep continuity and architecture and led to greater self-reported daytime sleepiness. SWL light also altered biological rhythms, subduing the normal nocturnal decline in body temperature and dampening nocturnal melatonin secretion. Light intensity seemed to independently affect sleep as well, but to a lesser degree.

Blue (blue) light illumination significantly disrupted sleep continuity and architecture and led to greater self-reported daytime sleepiness. SWL light also altered biological rhythms, subduing the normal nocturnal decline in body temperature and dampening nocturnal melatonin secretion. Light intensity seemed to independently affect sleep as well, but to a lesser degree.

adults who participate in any amount of physical activity gain some health benefits

Drying your clothes on the radiator makes your boiler work harder than it needs to and costs more.

The shorter, the better: 5 minutes is generally enough! To have fresh air in the room, open several windows at the same time. Repeat 2-3 times per day. Don’t be afraid to let heat escape during this time: It takes less energy to heat fresh air than to heat stuffy, moist air. If the windows are left tilted open over a long time in winter, it can cost more than 100 Euro extra per year. If it is too warm in a room, turn down the radiator. Open the windows only when you need fresh air.

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