Not only does strength training increase your physical work capacity, it also improves your ability to perform activities of daily living (ADL's). You will be able to work harder and longer with the proper weight training activities. It improves bone density.
Yes tu is used with family because is informal, usted is formal, which is used for bosses, directors or really important people
One it has a staircase going up the side and it is a mud volcano which is pretty impressive knowing that most volcanoes are made up of molten rock and lava and the mud is a healing mud which is very cool.