Can herbs really make you happier or is that a porky pie?

There are many herbs said to bring a feeling of calm, though most research has been done with lavender, as so much is in commercial cultivation. Some herbs, like ginger, mint and lemon verbena are also said to help digestion, so any calming may come from easing tummy grumbles. Mint also stimulates the cold receptors on the tongue, so any drink or fruit salad may seem cooler with added mint, unless you are making gingermint tea, a lovely cuppa to sip in mid winter.