All the structural features in the house should be according to its intended purpose / function and users anthropometry.
There should not be any visual discomfort in any part of the house. Every work surface should be well lighted, ventilated without any glare and shadow
Every item accessed frequently should be within reachable distance to avoid over-stretching.
Adjust work surface height so that it is at or below elbow height for most job tasks.
Adjust chair or work stool height according to leg length and the height of the work surface.
Allow space so that legs can be outstretched.
Handgrips and tools used in work should fit into hand size.
Workstation should be arranged to avoid over-stretching and unnecessary twisting.
When sitting, sit upright with ankles, knees, hips, and elbows positioned at ninety degrees with shoulders relaxed.
Select an adjustable chair with a stable base, adequate padding, good low-back support, proper back and hip support, and the seat doesn’t hit the back of the knees.
When doing housework try to keep pathways clear to avoid unnecessary twisting or stooping while mopping or sweeping.
Whether at home or at work you can avoid serious, costly injuries and improve stamina with use of these simple ergonomic principles.