Early Neurological stimulation

The next step is socialization:

small amounts of outside stimulation are introduced around 4-5 weeks of age. Play with ball, playing on different surfaces outside of their kennel area. Different noises introduced around 3-4 weeks, such as banging, vacuum, clapping any kind of noise that will acclimate them to different situation.

1)Tactical stimulation       (between toes)
2) Head held erect
3) Head pointed down
  Supine position
4) Thermal stimulation

These five exercises are important neurological stimulations. This is started at 3 days and ends when they are 16 days old.

What does this all mean? 

Improved cardio  (heart rate)
Stronger heart beats
Stronger adrenal glands
Higher tolerance to stress
Greater resistance to disease