Mass & weight are often used interchangably, but they are not th same. Weight is equal to the force acting on a mass, normally due to gravitational acceleration.
To loose weight may be bcause of various reasons:diabetis,,fever,malaria etc.... Getting in shape is to loose weight by diet or hitting th gym to look good and healthy
Because its in their genetics. They are all british, english, irish, or scotish. And usually people that are british, english, irish, or scotish have natiral curly hair back in th 1200's.