Infant health
Learning Center
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
Helping baby sleep through the night
Help your baby sleep through the night.
Herbal supplements and heart medicines may not mix
Some herbal supplements can have dangerous interactions with heart medications.
Herd immunity and COVID-19: What you need to know
To protect groups of people over time, it helps to know what level of recovery or vaccination in a population makes it hard for a germ to spread.
How well do face masks protect against COVID-19?
Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
Infant development: Milestones from 10 to 12 months
Budding curiosity drives infant development between ages 10 and 12 months.
Infant development: Milestones from 4 to 6 months
Milestones for most 4- to 6-month-old infants include increased alertness and evolving motor skills.
Infant development: Milestones from 7 to 9 months
Milestones for most 7- to 9-month-old infants include improved motor and language skills.
Infant formula: 7 steps to prepare it safely
Properly preparing and storing infant formula is essential for your baby's nutrition.
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