Maintaining a healthy hair care routine can indeed contribute to softer, more voluminous hair. Here are five good habits women (or anyone) can adopt when washing their hair:

1. Regular Scalp Massage: Before shampooing, spend a few minutes massaging your scalp with your fingertips in circular motions. This not only feels relaxing but also stimulates blood flow to the hair follicles, promoting a healthier scalp and potentially encouraging hair growth.
2. Choosing the Right Shampoo: Opt for a shampoo that matches your hair type and concerns. For example, if you have dry hair, use a moisturizing shampoo; for oily hair, a gentle clarifying shampoo; and for color-treated hair, a color-safe shampoo. Look for formulas with natural ingredients and a pH balance that aligns with the hair's natural acidity (around 4.5 to 5.5).
3. Conditioning Properly: Don't skip the conditioner, especially on the mid-lengths to ends of your hair. Conditioners help to replenish moisture, detangle strands, and prevent breakage. For added volume, consider using a lightweight or volumizing conditioner, and avoid applying it directly to your scalp.
4. Rinse Thoroughly: Make sure to rinse your hair thoroughly to remove all shampoo and conditioner residue. Leftover product can weigh your hair down, making it appear limp and less voluminous.
5. Gentle Drying Technique: After washing, gently squeeze excess water from your hair with a microfiber towel or an old t-shirt, avoiding rough rubbing which can cause friction and damage. Air-dry whenever possible, or if you must use a blow dryer, use a diffuser attachment and a cool or warm (not hot) setting to minimize heat damage and enhance volume.

Additionally, adopting a healthy lifestyle, including a balanced diet rich in hair-healthy nutrients (like protein, vitamins A, C, D, and E, biotin, and omega-3 fatty acids), staying hydrated, managing stress, and getting adequate sleep, can also contribute to improving hair health and potentially increasing hair volume over time.