Editing How to Apply Essential Oils (section)

=== Relaxation and Sleep Aid ===
Relaxing the body and mind and improving sleep quality are among the most well-known benefits of aromatherapy. Research suggests that the aroma of certain essential oils can act on the autonomic nervous system, helping to lower stress hormone levels and relax muscles, thereby promoting sleep. '''Lavender essential oil''' is the most famous for this—high-quality lavender oil has calming and sedative effects; its floral scent can ease tension, reduce sleep latency, and improve sleep quality. Placing 1 drop of lavender oil on a pillow or diffusing it before bed can help induce sleep with its sweet floral aroma. Besides lavender, '''Roman Chamomile essential oil''', containing ethers, also helps soothe emotions and dispel irritability, beneficial for insomnia; the rich earthy and floral scents of '''Vetiver essential oil''' and '''Ylang Ylang essential oil''' are often used for deep relaxation and meditation, contributing to deeper sleep. Among citrus oils, the fresh fruity scent of '''Bergamot essential oil''' has also been shown to have calming effects, suitable for relieving anxiety-induced insomnia. Some studies indicate that '''blending multiple essential oils''' may be more effective in improving sleep quality than using a single oil. Commercial sleep aid blends often feature lavender combined with oils like sweet marjoram or ylang-ylang for synergistic effects. A simple way to use oils for sleep is to add a few drops of lavender or ylang-ylang oil to a warm bath before bed, relaxing the body and inhaling the aroma to prepare for sleep. Personal preference and reaction to scents are important; choose an aroma that feels soothing to you.