Squats are a core exercise which works many muscle groups at the same time; legs, butt and back mostly but also stabilizing muscles in arms and torso. Unaided squats with free weights cause your body to do the most work but can be dangerous. Most people use a rail type squat rack that stabilizes the weights for you and gives you a way out if you can't bring the weight back up.
Pablo Picasso's Blue Period - 1901 to 1904. The Blue Period of Picasso is the period between 1900 and 1904, when he painted essentially monochromatic paintings in shades of blue and blue-green, only occasionally warmed by other colors.lindness is a recurrent theme in Picasso's works of this period, also represented in The Blindman's Meal (1903, the Metropolitan Museum of Art) and in the portrait of Celestina (1903). Other frequent subjects include female nudes and mothers with children.
Picasso first emerged as a Symbolist influenced by the likes of Edvard Munch and Henri de Toulouse-Lautrec. This tendency shaped his so-called Blue Period, in which he depicted beggars, prostitutes, and various urban misfits, and also the brighter moods of his subsequent Rose Period.