According to Dr. Oz, varicose and spider veins are the result of a similar process that involves how well blood travels through the venous system from the lower legs back to the heart.
Baby rabbits stay with their mothers until about 10-12 weeks, this is when they are able to move around quicker, avoid predators, and forage on their own. In the wild they should start adventuring out of the nest at 5 or 6 weeks to start learning from mom. At least 6 weeks.
Before you take the baby domestic rabbits into your care and attempt to bottle feed them, please consider... Unless the mother rabbit is known to be dead, there is a good chance that she is feeding her babies, even if she seems to be ignoring them. A mother rabbit does not constantly tend to her babies the way a mother carnivore does. Rabbit mamas feed their babies only twice per day, and then leave them alone.