Nicotine is the primary ingredient in tobacco products. Nicotine in medical products is used to aid in smoking cessation. Using a controlled amount helps reduce nicotine withdrawal symptoms when you quit smoking.
When to Expect Crawling to Begin. Babies typically begin to crawl between 6 and 10 months, although some may skip the crawling phase altogether and go straight to pulling up, cruising, and walking. Help your babe get ready for his crawling debut by giving him lots of supervised tummy time.
the reason for this is that not all babies crawl plus it is not a prerequisite to have crawling mastered before another milestone can be reached if a baby is going to crawl the average age range is 7 10 months to develop proficiency