by Michel Viatteau Agence France Presse RUSKIE PIASKI, Poland (AFP) — An elderly woman leans over to smell a lush flowerbed of lavender in sprawling gardens surrounding an imposing early 20th-century palace in a pastoral corner of eastern Poland. Slowly a smile lights up her face, erasing her previous stony expression — she suffers from paranoid schizophrenia which often renders her emotionless. The sudden burst of happiness is one of the benefits of horticultural, or […]