Blood group B individuals have the B antigen on the surface of their RBCs, and blood serum containing IgM antibodies against the A antigen. Therefore, a group B individual can receive blood only from individuals of groups B or O (with B being preferable), and can donate blood to individuals with type B or AB.
Language development usually signals the development of memory and the understanding required to get time out. . Dr. Sears recommends starting time out at 18 months and expects that toddlers will understand it by 2. . For toddlers many developmental experts recommend natural consequences rather than or along with timeouts.
If a baby is escaping at 2 months and at the beginning and into the 3rd month, it is often the fault of the swaddle. At the age of 2 and 3 months, a baby's startle is often still too strong to give up the helpful, startle-soothing restriction of a tight swaddle. Although many babies have had great success with the Zipadee-Zip at 2 and 3 months, the best transition time is right around the 4-6 month mark.