'Not since an asteroid smacked earth 65 million years ago
have animal and plant species died out so fast. We have no idea
what we are losing.'
--Dr. E.O. Wilson. Harvard University.
Source
of Healing.
All cultures from ancient times have used plants as a source of medicine.
Today, according to the World Health Organization (WHO), as many as
80% of the world's peoples depend on traditional medicine and plant
extracts for their primary health care needs. In Tibetan medicine,
the value of medical herbs has long been understood and good use made
of the hundreds of plant species that grow wild across the Himalayas.
Unexplored Resources.
The active ingredients in many modern medicines originate from
plants. For instance, the effective compound found in common
aspirin, acetyl salicylic acid, comes from willow bark. However,
so far only a few hundred wild species have served to provide
western medicines against cancer, diabetes or heart disease.
Thousands of other species, whose biochemistry is yet unstudied,
provide a huge reservoir of new and potentially effective substances.
Essential Bio-diversity.
Large pharmaceutical companies are now showing a great interest in
medicinal plants and are researching their effectiveness. However,
in the Himalayas as well as elsewhere, over-harvesting is becoming
a serious problem. Poor local villagers are paid to collect medicinal
plants for export. Wholesale collection is common, leaving few remaining
plants to set seed and produce viable populations. Over 7000 species
of vascular plants are found in Nepal: 252 are endemic and over 600
are medicinal. Over 150 of these medicinal plants grow in Tengboche
and they are under threat, growing at high altitude in a vulnerable
mountain ecosystem.
Missing Medicines.
The decline in species has contributed to the scarcity of essential
plants utilized in Tibetan medicine. Most medicines are a compound
of at least three or four plants, and some are made from over 130 different
ingredients. As bio-diversity is threatened, so too is the effectiveness
of traditional medicine, and the plant knowledge on which it is based.
Some important medicines are now missing from the Tibetan pharmacy
due to a lack of ingredients. In addition, medicines made in a polluted
environment are not as potent. Aware of this problem, Tengboche Rinpoche
has recently helped establish a medicinal herb plantation and tree
nursery on monastery land just below Tengboche. This project is supported
by the Sacred Land Eco-Center and shop.
'Our ancestors viewed the earth as rich and beautiful, which it
is. Many people in the past also saw nature as inexhaustible, which
we now know is the case only if we take care of it.
--H.H. The Dalai Lama. |